13120021103112 has 144 divisors (see below), whose sum is σ = 44636986605120. Its totient is φ = 3407797673280.

The previous prime is 13120021103081. The next prime is 13120021103117. The reversal of 13120021103112 is 21130112002131.

13120021103112 is a `hidden beast` number, since 131 + 200 + 21 + 1 + 0 + 311 + 2 = 666.

It is a super-2 number, since 2×13120021103112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13120021103117) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 107508388 + ... + 107630355.

Almost surely, 2^{13120021103112} is an apocalyptic number.

13120021103112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13120021103112 is an abundant number, since it is smaller than the sum of its proper divisors (31516965502008).

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

13120021103112 is a wasteful number, since it uses less digits than its factorization.

13120021103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215138784 (or 215138766 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13120021103112 its reverse (21130112002131), we get a palindrome (34250133105243).

The spelling of 13120021103112 in words is "thirteen trillion, one hundred twenty billion, twenty-one million, one hundred three thousand, one hundred twelve".