31355104544052 has 96 divisors (see below), whose sum is σ = 81665813053440. Its totient is φ = 9317032066560.

The previous prime is 31355104544033. The next prime is 31355104544059. The reversal of 31355104544052 is 25044540155313.

It is a junction number, because it is equal to n+sod(n) for n = 31355104543995 and 31355104544013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31355104544059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52448652 + ... + 53043107.

It is an arithmetic number, because the mean of its divisors is an integer number (850685552640).

Almost surely, 2^{31355104544052} is an apocalyptic number.

It is an amenable number.

31355104544052 is an abundant number, since it is smaller than the sum of its proper divisors (50310708509388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31355104544052 is a wasteful number, since it uses less digits than its factorization.

31355104544052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105491861 (or 105491859 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 31355104544052 its reverse (25044540155313), we get a palindrome (56399644699365).

The spelling of 31355104544052 in words is "thirty-one trillion, three hundred fifty-five billion, one hundred four million, five hundred forty-four thousand, fifty-two".