13131520514434 has 128 divisors (see below), whose sum is σ = 24252695419392. Its totient is φ = 5205047377920.

The previous prime is 13131520514363. The next prime is 13131520514471. The reversal of 13131520514434 is 43441502513131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13131520514393 and 13131520514402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1386200322 + ... + 1386209794.

It is an arithmetic number, because the mean of its divisors is an integer number (189474182964).

Almost surely, 2^{13131520514434} is an apocalyptic number.

13131520514434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13131520514434 is a deficient number, since it is larger than the sum of its proper divisors (11121174904958).

13131520514434 is a wasteful number, since it uses less digits than its factorization.

13131520514434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 13131520514434 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty million, five hundred fourteen thousand, four hundred thirty-four".