20020322231 has 32 divisors (see below), whose sum is σ = 25624166400. Its totient is φ = 15213582720.

The previous prime is 20020322177. The next prime is 20020322233. The reversal of 20020322231 is 13222302002.

It is not a de Polignac number, because 20020322231 - 2²² = 20016127927 is a prime.

It is a super-2 number, since 2×20020322231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020322233) 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, 484190 + ... + 523908.

It is an arithmetic number, because the mean of its divisors is an integer number (800755200).

Almost surely, 2^20020322231 is an apocalyptic number.

20020322231 is a deficient number, since it is larger than the sum of its proper divisors (5603844169).

20020322231 is a wasteful number, since it uses less digits than its factorization.

20020322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39959.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20020322231 its reverse (13222302002), we get a palindrome (33242624233).

The spelling of 20020322231 in words is "twenty billion, twenty million, three hundred twenty-two thousand, two hundred thirty-one".