13123455022000 has 80 divisors (see below), whose sum is σ = 31927193037792. Its totient is φ = 5217177081600.

The previous prime is 13123455021977. The next prime is 13123455022021. The reversal of 13123455022000 is 22055432131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 13123455022000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19801999 + ... + 20453998.

Almost surely, 2^{13123455022000} is an apocalyptic number.

13123455022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123455022000 is an abundant number, since it is smaller than the sum of its proper divisors (18803738015792).

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

13123455022000 is a wasteful number, since it uses less digits than its factorization.

13123455022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40256183 (or 40256167 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 13123455022000 in words is "thirteen trillion, one hundred twenty-three billion, four hundred fifty-five million, twenty-two thousand".