13121023203112 has 32 divisors (see below), whose sum is σ = 26974692407520. Its totient is φ = 5933826821440.

The previous prime is 13121023203107. The next prime is 13121023203131. The reversal of 13121023203112 is 21130232012131.

It is a super-2 number, since 2×13121023203112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378415498 + ... + 378450169.

It is an arithmetic number, because the mean of its divisors is an integer number (842959137735).

Almost surely, 2^{13121023203112} is an apocalyptic number.

It is an amenable number.

13121023203112 is an abundant number, since it is smaller than the sum of its proper divisors (13853669204408).

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

13121023203112 is a wasteful number, since it uses less digits than its factorization.

13121023203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756865881 (or 756865877 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13121023203112 its reverse (21130232012131), we get a palindrome (34251255215243).

The spelling of 13121023203112 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, two hundred three thousand, one hundred twelve".