13123030021112 has 32 divisors (see below), whose sum is σ = 26845599830400. Its totient is φ = 5964338440800.

The previous prime is 13123030021097. The next prime is 13123030021121. The reversal of 13123030021112 is 21112003032131.

It is a happy number.

It is a congruent number.

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, 7657814 + ... + 9213477.

It is an arithmetic number, because the mean of its divisors is an integer number (838924994700).

Almost surely, 2^{13123030021112} is an apocalyptic number.

It is an amenable number.

13123030021112 is an abundant number, since it is smaller than the sum of its proper divisors (13722569809288).

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

13123030021112 is a wasteful number, since it uses less digits than its factorization.

13123030021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16880147 (or 16880143 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13123030021112 its reverse (21112003032131), we get a palindrome (34235033053243).

The spelling of 13123030021112 in words is "thirteen trillion, one hundred twenty-three billion, thirty million, twenty-one thousand, one hundred twelve".