31320023020222 has 32 divisors (see below), whose sum is σ = 49070487502080. Its totient is φ = 14964525987840.

The previous prime is 31320023020189. The next prime is 31320023020241. The reversal of 31320023020222 is 22202032002313.

It is a junction number, because it is equal to n+sod(n) for n = 31320023020193 and 31320023020202.

It is a congruent number.

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, 510241929 + ... + 510303307.

It is an arithmetic number, because the mean of its divisors is an integer number (1533452734440).

Almost surely, 2^{31320023020222} is an apocalyptic number.

31320023020222 is a deficient number, since it is larger than the sum of its proper divisors (17750464481858).

31320023020222 is a wasteful number, since it uses less digits than its factorization.

31320023020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72048.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31320023020222 its reverse (22202032002313), we get a palindrome (53522055022535).

The spelling of 31320023020222 in words is "thirty-one trillion, three hundred twenty billion, twenty-three million, twenty thousand, two hundred twenty-two".