31023200123020 has 48 divisors (see below), whose sum is σ = 74459622565440. Its totient is φ = 10635962575104.

The previous prime is 31023200122963. The next prime is 31023200123033. The reversal of 31023200123020 is 2032100232013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208635 + ... + 8505394.

It is an arithmetic number, because the mean of its divisors is an integer number (1551242136780).

Almost surely, 2^{31023200123020} is an apocalyptic number.

It is an amenable number.

31023200123020 is an abundant number, since it is smaller than the sum of its proper divisors (43436422442420).

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

31023200123020 is a wasteful number, since it uses less digits than its factorization.

31023200123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732962 (or 11732960 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31023200123020 its reverse (2032100232013), we get a palindrome (33055300355033).

The spelling of 31023200123020 in words is "thirty-one trillion, twenty-three billion, two hundred million, one hundred twenty-three thousand, twenty".