31021340120133 has 16 divisors (see below), whose sum is σ = 47776181576256. Its totient is φ = 17694882064640.

The previous prime is 31021340120129. The next prime is 31021340120209. The reversal of 31021340120133 is 33102104312013.

It is not a de Polignac number, because 31021340120133 - 2² = 31021340120129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31021340120033) 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, 27648252666 + ... + 27648253787.

It is an arithmetic number, because the mean of its divisors is an integer number (2986011348516).

Almost surely, 2^{31021340120133} is an apocalyptic number.

31021340120133 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31021340120133 is a deficient number, since it is larger than the sum of its proper divisors (16754841456123).

31021340120133 is a wasteful number, since it uses less digits than its factorization.

31021340120133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55296506484.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31021340120133 its reverse (33102104312013), we get a palindrome (64123444432146).

The spelling of 31021340120133 in words is "thirty-one trillion, twenty-one billion, three hundred forty million, one hundred twenty thousand, one hundred thirty-three".