31010021412320 has 48 divisors (see below), whose sum is σ = 74084334896880. Its totient is φ = 12264637676544.

The previous prime is 31010021412301. The next prime is 31010021412323. The reversal of 31010021412320 is 2321412001013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31010021412292 and 31010021412301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010021412323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088820782 + ... + 1088849261.

It is an arithmetic number, because the mean of its divisors is an integer number (1543423643685).

Almost surely, 2^{31010021412320} is an apocalyptic number.

It is an amenable number.

31010021412320 is an abundant number, since it is smaller than the sum of its proper divisors (43074313484560).

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

31010021412320 is a wasteful number, since it uses less digits than its factorization.

31010021412320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177670147 (or 2177670139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31010021412320 its reverse (2321412001013), we get a palindrome (33331433413333).

The spelling of 31010021412320 in words is "thirty-one trillion, ten billion, twenty-one million, four hundred twelve thousand, three hundred twenty".