13403055315531 has 32 divisors (see below), whose sum is σ = 20606812098048. Its totient is φ = 7590238548480.

The previous prime is 13403055315521. The next prime is 13403055315541. The reversal of 13403055315531 is 13551355030431.

It is an interprime number because it is at equal distance from previous prime (13403055315521) and next prime (13403055315541).

It is not a de Polignac number, because 13403055315531 - 2¹⁵ = 13403055282763 is a prime.

It is a super-2 number, since 2×13403055315531² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13403055315531.

It is not an unprimeable number, because it can be changed into a prime (13403055315521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20612080 + ... + 21252386.

It is an arithmetic number, because the mean of its divisors is an integer number (643962878064).

Almost surely, 2^{13403055315531} is an apocalyptic number.

13403055315531 is a deficient number, since it is larger than the sum of its proper divisors (7203756782517).

13403055315531 is a wasteful number, since it uses less digits than its factorization.

13403055315531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649251.

The product of its (nonzero) digits is 202500, while the sum is 39.

The spelling of 13403055315531 in words is "thirteen trillion, four hundred three billion, fifty-five million, three hundred fifteen thousand, five hundred thirty-one".