31545053444120 has 64 divisors (see below), whose sum is σ = 71413862444640. Its totient is φ = 12540249446400.

The previous prime is 31545053444039. The next prime is 31545053444129. The reversal of 31545053444120 is 2144435054513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31545053444129) 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, 439549040 + ... + 439620800.

Almost surely, 2^{31545053444120} is an apocalyptic number.

It is an amenable number.

31545053444120 is an abundant number, since it is smaller than the sum of its proper divisors (39868809000520).

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

31545053444120 is a wasteful number, since it uses less digits than its factorization.

31545053444120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139356 (or 139352 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 31545053444120 its reverse (2144435054513), we get a palindrome (33689488498633).

The spelling of 31545053444120 in words is "thirty-one trillion, five hundred forty-five billion, fifty-three million, four hundred forty-four thousand, one hundred twenty".