1310997963 has 16 divisors (see below), whose sum is σ = 1908095616. Its totient is φ = 794048640.

The previous prime is 1310997937. The next prime is 1310997973. The reversal of 1310997963 is 3697990131.

It is not a de Polignac number, because 1310997963 - 2³⁰ = 237256139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1310997923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45331 + ... + 68387.

It is an arithmetic number, because the mean of its divisors is an integer number (119255976).

Almost surely, 2^1310997963 is an apocalyptic number.

1310997963 is a deficient number, since it is larger than the sum of its proper divisors (597097653).

1310997963 is a wasteful number, since it uses less digits than its factorization.

1310997963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24794.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 1310997963 is about 36207.7058511030. The cubic root of 1310997963 is about 1094.4619620659.

The spelling of 1310997963 in words is "one billion, three hundred ten million, nine hundred ninety-seven thousand, nine hundred sixty-three".