31322000220023 has 4 divisors (see below), whose sum is σ = 31835475633528. Its totient is φ = 30808524806520.

The previous prime is 31322000219971. The next prime is 31322000220037. The reversal of 31322000220023 is 32002200022313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31322000220023 - 2⁸ = 31322000219767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31322000219977 and 31322000220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322000220053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256737706661 + ... + 256737706782.

It is an arithmetic number, because the mean of its divisors is an integer number (7958868908382).

Almost surely, 2^{31322000220023} is an apocalyptic number.

31322000220023 is a deficient number, since it is larger than the sum of its proper divisors (513475413505).

31322000220023 is an equidigital number, since it uses as much as digits as its factorization.

31322000220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513475413504.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31322000220023 its reverse (32002200022313), we get a palindrome (63324200242336).

The spelling of 31322000220023 in words is "thirty-one trillion, three hundred twenty-two billion, two hundred twenty thousand, twenty-three".