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13121102203122 = 237197131720607
BaseRepresentation
bin1011111011101111111010…
…1000101100100011110010
31201110100212011122212012210
42332323332220230203302
53204434004130444442
643523430125032550
72522653100344104
oct276737650544362
951410764585183
1013121102203122
1141a96a0144391
12157ab5a6b5756
13742412315184
143350c98c1574
1517b49b2ab19c
hexbeefea2c8f2

13121102203122 has 32 divisors (see below), whose sum is σ = 26639220363264. Its totient is φ = 4307658294800.

The previous prime is 13121102203093. The next prime is 13121102203189. The reversal of 13121102203122 is 22130220112131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15446658 + ... + 16273949.

It is an arithmetic number, because the mean of its divisors is an integer number (832475636352).

Almost surely, 213121102203122 is an apocalyptic number.

13121102203122 is an abundant number, since it is smaller than the sum of its proper divisors (13518118160142).

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

13121102203122 is a wasteful number, since it uses less digits than its factorization.

13121102203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31721654.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13121102203122 its reverse (22130220112131), we get a palindrome (35251322315253).

The spelling of 13121102203122 in words is "thirteen trillion, one hundred twenty-one billion, one hundred two million, two hundred three thousand, one hundred twenty-two".

Divisors: 1 2 3 6 71 142 213 426 971 1942 2913 5826 68941 137882 206823 413646 31720607 63441214 95161821 190323642 2252163097 4504326194 6756489291 13512978582 30800709397 61601418794 92402128191 184804256382 2186850367187 4373700734374 6560551101561 13121102203122