13023431055 has 12 divisors (see below), whose sum is σ = 22573947240. Its totient is φ = 6945829872.

The previous prime is 13023431017. The next prime is 13023431081. The reversal of 13023431055 is 55013432031.

13023431055 is a `hidden beast` number, since 1 + 302 + 343 + 10 + 5 + 5 = 666.

It is not a de Polignac number, because 13023431055 - 2⁶ = 13023430991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144704745 + ... + 144704834.

It is an arithmetic number, because the mean of its divisors is an integer number (1881162270).

Almost surely, 2^13023431055 is an apocalyptic number.

13023431055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13023431055 is a deficient number, since it is larger than the sum of its proper divisors (9550516185).

13023431055 is a wasteful number, since it uses less digits than its factorization.

13023431055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289409590 (or 289409587 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 13023431055 its reverse (55013432031), we get a palindrome (68036863086).

The spelling of 13023431055 in words is "thirteen billion, twenty-three million, four hundred thirty-one thousand, fifty-five".