20022031320 has 32 divisors (see below), whose sum is σ = 60066094320. Its totient is φ = 5339208320.

The previous prime is 20022031313. The next prime is 20022031327. The reversal of 20022031320 is 2313022002.

It is an interprime number because it is at equal distance from previous prime (20022031313) and next prime (20022031327).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20022031320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022031327) 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, 83425011 + ... + 83425250.

Almost surely, 2^20022031320 is an apocalyptic number.

20022031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022031320 is an abundant number, since it is smaller than the sum of its proper divisors (40044063000).

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

20022031320 is a wasteful number, since it uses less digits than its factorization.

20022031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166850275 (or 166850271 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20022031320 its reverse (2313022002), we get a palindrome (22335053322).

It can be divided in two parts, 200220 and 31320, that added together give a triangular number (231540 = T₆₈₀).

The spelling of 20022031320 in words is "twenty billion, twenty-two million, thirty-one thousand, three hundred twenty".