31301310121133 has 12 divisors (see below), whose sum is σ = 33953359700988. Its totient is φ = 28685649775680.

The previous prime is 31301310121033. The next prime is 31301310121189. The reversal of 31301310121133 is 33112101310313.

It can be written as a sum of positive squares in 2 ways, for example, as 2151698795689 + 29149611325444 = 1466867^2 + 5399038^2 .

It is not a de Polignac number, because 31301310121133 - 2³⁶ = 31232590644397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31301310121099 and 31301310121108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301310121033) 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, 62059088 + ... + 62561433.

It is an arithmetic number, because the mean of its divisors is an integer number (2829446641749).

Almost surely, 2^{31301310121133} is an apocalyptic number.

It is an amenable number.

31301310121133 is a deficient number, since it is larger than the sum of its proper divisors (2652049579855).

31301310121133 is a wasteful number, since it uses less digits than its factorization.

31301310121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124620812 (or 124620673 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31301310121133 its reverse (33112101310313), we get a palindrome (64413411431446).

The spelling of 31301310121133 in words is "thirty-one trillion, three hundred one billion, three hundred ten million, one hundred twenty-one thousand, one hundred thirty-three".