31311201303 has 6 divisors (see below), whose sum is σ = 45227290784. Its totient is φ = 20874134196.

The previous prime is 31311201269. The next prime is 31311201323. The reversal of 31311201303 is 30310211313.

It is a happy number.

31311201303 is a `hidden beast` number, since 31 + 311 + 20 + 1 + 303 = 666.

It is not a de Polignac number, because 31311201303 - 2¹² = 31311197207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311201323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739511175 + ... + 1739511192.

Almost surely, 2^31311201303 is an apocalyptic number.

31311201303 is a deficient number, since it is larger than the sum of its proper divisors (13916089481).

31311201303 is a wasteful number, since it uses less digits than its factorization.

31311201303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479022373 (or 3479022370 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31311201303 its reverse (30310211313), we get a palindrome (61621412616).

The spelling of 31311201303 in words is "thirty-one billion, three hundred eleven million, two hundred one thousand, three hundred three".