31322020211203 has 24 divisors (see below), whose sum is σ = 33289914703248. Its totient is φ = 29465431639488.

The previous prime is 31322020211117. The next prime is 31322020211221. The reversal of 31322020211203 is 30211202022313.

It is a de Polignac number, because none of the positive numbers 2^k-31322020211203 is a prime.

It is a super-2 number, since 2×31322020211203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31322020211243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28764600 + ... + 29833642.

It is an arithmetic number, because the mean of its divisors is an integer number (1387079779302).

Almost surely, 2^{31322020211203} is an apocalyptic number.

31322020211203 is a deficient number, since it is larger than the sum of its proper divisors (1967894492045).

31322020211203 is a wasteful number, since it uses less digits than its factorization.

31322020211203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069651 (or 1069632 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31322020211203 its reverse (30211202022313), we get a palindrome (61533222233516).

The spelling of 31322020211203 in words is "thirty-one trillion, three hundred twenty-two billion, twenty million, two hundred eleven thousand, two hundred three".