13122253456 has 40 divisors (see below), whose sum is σ = 27544112064. Its totient is φ = 6020142720.

The previous prime is 13122253447. The next prime is 13122253489. The reversal of 13122253456 is 65435222131.

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, 154150 + ... + 223621.

Almost surely, 2^13122253456 is an apocalyptic number.

13122253456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13122253456 is an abundant number, since it is smaller than the sum of its proper divisors (14421858608).

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

13122253456 is a wasteful number, since it uses less digits than its factorization.

13122253456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377959 (or 377953 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

Adding to 13122253456 its reverse (65435222131), we get a palindrome (78557475587).

The spelling of 13122253456 in words is "thirteen billion, one hundred twenty-two million, two hundred fifty-three thousand, four hundred fifty-six".