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12234113021 = 1371109277439
BaseRepresentation
bin10110110010011010…
…11011111111111101
31011120121122100001002
423121031123333331
5200023413104041
65341551300045
7612113146664
oct133115337775
934517570032
1012234113021
115208924209
12245521a625
1311cc803c40
14840b5dddb
154b90b759b
hex2d935bffd

12234113021 has 32 divisors (see below), whose sum is σ = 13562841600. Its totient is φ = 10966959360.

The previous prime is 12234112987. The next prime is 12234113027. The reversal of 12234113021 is 12031143221.

It is a cyclic number.

It is not a de Polignac number, because 12234113021 - 210 = 12234111997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12234112984 and 12234113002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12234113027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27867920 + ... + 27868358.

It is an arithmetic number, because the mean of its divisors is an integer number (423838800).

Almost surely, 212234113021 is an apocalyptic number.

It is an amenable number.

12234113021 is a deficient number, since it is larger than the sum of its proper divisors (1328728579).

12234113021 is a wasteful number, since it uses less digits than its factorization.

12234113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12234113021 its reverse (12031143221), we get a palindrome (24265256242).

The spelling of 12234113021 in words is "twelve billion, two hundred thirty-four million, one hundred thirteen thousand, twenty-one".

Divisors: 1 13 71 109 277 439 923 1417 3601 5707 7739 19667 30193 31169 47851 100607 121603 255671 392509 405197 622063 1580839 2143703 3397421 8633813 13254727 27868139 44166473 112239569 172311451 941085617 12234113021