13111562434 has 4 divisors (see below), whose sum is σ = 19667343654. Its totient is φ = 6555781216.

The previous prime is 13111562377. The next prime is 13111562441. The reversal of 13111562434 is 43426511131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11951955625 + 1159606809 = 109325^2 + 34053^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13111562396 and 13111562405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277890607 + ... + 3277890610.

Almost surely, 2^13111562434 is an apocalyptic number.

13111562434 is a deficient number, since it is larger than the sum of its proper divisors (6555781220).

13111562434 is an equidigital number, since it uses as much as digits as its factorization.

13111562434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555781219.

The product of its digits is 8640, while the sum is 31.

The spelling of 13111562434 in words is "thirteen billion, one hundred eleven million, five hundred sixty-two thousand, four hundred thirty-four".