1317037923 has 12 divisors (see below), whose sum is σ = 2014293528. Its totient is φ = 826376640.

The previous prime is 1317037921. The next prime is 1317037949. The reversal of 1317037923 is 3297307131.

It is not a de Polignac number, because 1317037923 - 2¹ = 1317037921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317037921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4303893 + ... + 4304198.

It is an arithmetic number, because the mean of its divisors is an integer number (167857794).

Almost surely, 2^1317037923 is an apocalyptic number.

1317037923 is a deficient number, since it is larger than the sum of its proper divisors (697255605).

1317037923 is a wasteful number, since it uses less digits than its factorization.

1317037923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608114 (or 8608111 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 1317037923 is about 36291.0171116765. The cubic root of 1317037923 is about 1096.1401697380.

The spelling of 1317037923 in words is "one billion, three hundred seventeen million, thirty-seven thousand, nine hundred twenty-three".