20023322031 has 24 divisors (see below), whose sum is σ = 29336246784. Its totient is φ = 13159298880.

The previous prime is 20023322029. The next prime is 20023322131. The reversal of 20023322031 is 13022332002.

It is a happy number.

It is not a de Polignac number, because 20023322031 - 2¹ = 20023322029 is a prime.

It is a super-2 number, since 2×20023322031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20023321995 and 20023322013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023322131) 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, 123661 + ... + 235241.

It is an arithmetic number, because the mean of its divisors is an integer number (1222343616).

Almost surely, 2^20023322031 is an apocalyptic number.

20023322031 is a deficient number, since it is larger than the sum of its proper divisors (9312924753).

20023322031 is a wasteful number, since it uses less digits than its factorization.

20023322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111871 (or 111868 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20023322031 its reverse (13022332002), we get a palindrome (33045654033).

The spelling of 20023322031 in words is "twenty billion, twenty-three million, three hundred twenty-two thousand, thirty-one".