13123031100000 has 144 divisors (see below), whose sum is σ = 43057190944656. Its totient is φ = 3499474880000.

The previous prime is 13123031099993. The next prime is 13123031100019. The reversal of 13123031100000 is 113032131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21571719 + ... + 22171718.

It is an arithmetic number, because the mean of its divisors is an integer number (299008270449).

Almost surely, 2^{13123031100000} is an apocalyptic number.

13123031100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123031100000 is an abundant number, since it is smaller than the sum of its proper divisors (29934159844656).

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

13123031100000 is an frugal number, since it uses more digits than its factorization.

13123031100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43743475 (or 43743447 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13123031100000 its reverse (113032131), we get a palindrome (13123144132131).

The spelling of 13123031100000 in words is "thirteen trillion, one hundred twenty-three billion, thirty-one million, one hundred thousand".