1316903331 has 16 divisors (see below), whose sum is σ = 1780821504. Its totient is φ = 865530624.

The previous prime is 1316903327. The next prime is 1316903333. The reversal of 1316903331 is 1333096131.

It is not a de Polignac number, because 1316903331 - 2² = 1316903327 is a prime.

It is a super-2 number, since 2×1316903331² = 3468468766397791122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1316903333) 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, 67930 + ... + 85136.

It is an arithmetic number, because the mean of its divisors is an integer number (111301344).

Almost surely, 2^1316903331 is an apocalyptic number.

1316903331 is a deficient number, since it is larger than the sum of its proper divisors (463918173).

1316903331 is a wasteful number, since it uses less digits than its factorization.

1316903331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17570.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 1316903331 is about 36289.1627211210. The cubic root of 1316903331 is about 1096.1028291976.

Adding to 1316903331 its reverse (1333096131), we get a palindrome (2649999462).

The spelling of 1316903331 in words is "one billion, three hundred sixteen million, nine hundred three thousand, three hundred thirty-one".