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121233404204 = 221137474573467
BaseRepresentation
bin111000011101000010…
…0101111000100101100
3102120220222001000222122
41300322010233010230
53441241222413304
6131405512332112
711521163635013
oct1607204570454
9376828030878
10121233404204
1147462106a40
121b5b49a4038
13b5808a6143
145c2108da7a
1532483dd9be
hex1c3a12f12c

121233404204 has 96 divisors (see below), whose sum is σ = 243359714304. Its totient is φ = 52346027520.

The previous prime is 121233404203. The next prime is 121233404231. The reversal of 121233404204 is 402404332121.

It is not an unprimeable number, because it can be changed into a prime (121233404203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34966079 + ... + 34969545.

It is an arithmetic number, because the mean of its divisors is an integer number (2534997024).

Almost surely, 2121233404204 is an apocalyptic number.

It is an amenable number.

121233404204 is an abundant number, since it is smaller than the sum of its proper divisors (122126310100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121233404204 is a wasteful number, since it uses less digits than its factorization.

121233404204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 121233404204 its reverse (402404332121), we get a palindrome (523637736325).

The spelling of 121233404204 in words is "one hundred twenty-one billion, two hundred thirty-three million, four hundred four thousand, two hundred four".

Divisors: 1 2 4 11 22 37 44 47 74 94 148 188 407 457 517 814 914 1034 1628 1739 1828 2068 3467 3478 5027 6934 6956 10054 13868 16909 19129 20108 21479 33818 38137 38258 42958 67636 76274 76516 85916 128279 152548 162949 185999 236269 256558 325898 371998 472538 513116 651796 743996 794723 945076 1411069 1584419 1589446 1792439 2822138 3168838 3178892 3584878 5644276 6029113 6337676 7169756 8741953 12058226 17428609 17483906 24116452 34857218 34967812 58623503 66320243 69714436 74467693 117247006 132640486 148935386 234494012 265280972 297870772 644858533 819144623 1289717066 1638289246 2579434132 2755304641 3276578492 5510609282 11021218564 30308351051 60616702102 121233404204