31023020031132 has 12 divisors (see below), whose sum is σ = 72387046739336. Its totient is φ = 10341006677040.

The previous prime is 31023020031127. The next prime is 31023020031137. The reversal of 31023020031132 is 23113002032013.

It is an interprime number because it is at equal distance from previous prime (31023020031127) and next prime (31023020031137).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 31023020031099 and 31023020031108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023020031137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292625834619 + ... + 1292625834642.

Almost surely, 2^{31023020031132} is an apocalyptic number.

It is an amenable number.

31023020031132 is an abundant number, since it is smaller than the sum of its proper divisors (41364026708204).

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

31023020031132 is a wasteful number, since it uses less digits than its factorization.

31023020031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585251669268 (or 2585251669266 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31023020031132 its reverse (23113002032013), we get a palindrome (54136022063145).

The spelling of 31023020031132 in words is "thirty-one trillion, twenty-three billion, twenty million, thirty-one thousand, one hundred thirty-two".