31320133101 has 12 divisors (see below), whose sum is σ = 45269009760. Its totient is φ = 20866788360.

The previous prime is 31320133057. The next prime is 31320133123. The reversal of 31320133101 is 10133102313.

It is a happy number.

31320133101 is a `hidden beast` number, since 31 + 320 + 1 + 3 + 310 + 1 = 666.

It is not a de Polignac number, because 31320133101 - 2¹⁸ = 31319870957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320133181) 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, 1093441 + ... + 1121718.

It is an arithmetic number, because the mean of its divisors is an integer number (3772417480).

Almost surely, 2^31320133101 is an apocalyptic number.

It is an amenable number.

31320133101 is a deficient number, since it is larger than the sum of its proper divisors (13948876659).

31320133101 is a wasteful number, since it uses less digits than its factorization.

31320133101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216736 (or 2216733 counting only the distinct ones).

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

Adding to 31320133101 its reverse (10133102313), we get a palindrome (41453235414).

The spelling of 31320133101 in words is "thirty-one billion, three hundred twenty million, one hundred thirty-three thousand, one hundred one".