13031123100000 has 144 divisors (see below), whose sum is σ = 42755637120336. Its totient is φ = 3474966080000.

The previous prime is 13031123099941. The next prime is 13031123100013. The reversal of 13031123100000 is 132113031.

It is a super-2 number, since 2×13031123100000² (a number of 27 digits) contains 22 as substring.

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, 21418539 + ... + 22018538.

It is an arithmetic number, because the mean of its divisors is an integer number (296914146669).

Almost surely, 2^{13031123100000} is an apocalyptic number.

13031123100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031123100000 is an abundant number, since it is smaller than the sum of its proper divisors (29724514020336).

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

13031123100000 is an frugal number, since it uses more digits than its factorization.

13031123100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43437115 (or 43437087 counting only the distinct ones).

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

Adding to 13031123100000 its reverse (132113031), we get a palindrome (13031255213031).

The spelling of 13031123100000 in words is "thirteen trillion, thirty-one billion, one hundred twenty-three million, one hundred thousand".