31322020003002 has 64 divisors (see below), whose sum is σ = 70034177283840. Its totient is φ = 10376243108928.

The previous prime is 31322020002989. The next prime is 31322020003007. The reversal of 31322020003002 is 20030002022313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31322020003007) 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, 49074508 + ... + 49708664.

It is an arithmetic number, because the mean of its divisors is an integer number (1094284020060).

Almost surely, 2^{31322020003002} is an apocalyptic number.

31322020003002 is an abundant number, since it is smaller than the sum of its proper divisors (38712157280838).

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

31322020003002 is a wasteful number, since it uses less digits than its factorization.

31322020003002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639812 (or 639806 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31322020003002 its reverse (20030002022313), we get a palindrome (51352022025315).

The spelling of 31322020003002 in words is "thirty-one trillion, three hundred twenty-two billion, twenty million, three thousand, two".