1315032431997 has 64 divisors (see below), whose sum is σ = 2008225094400. Its totient is φ = 760117063680.

The previous prime is 1315032431971. The next prime is 1315032432019. The reversal of 1315032431997 is 7991342305131.

It is not a de Polignac number, because 1315032431997 - 2³⁰ = 1313958690173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315032431927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66712579 + ... + 66732287.

It is an arithmetic number, because the mean of its divisors is an integer number (31378517100).

Almost surely, 2^{1315032431997} is an apocalyptic number.

1315032431997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1315032431997 is a deficient number, since it is larger than the sum of its proper divisors (693192662403).

1315032431997 is a wasteful number, since it uses less digits than its factorization.

1315032431997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21646.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 1315032431997 in words is "one trillion, three hundred fifteen billion, thirty-two million, four hundred thirty-one thousand, nine hundred ninety-seven".