22423020031 has 4 divisors (see below), whose sum is σ = 23603179000. Its totient is φ = 21242861064.

The previous prime is 22423019989. The next prime is 22423020041. The reversal of 22423020031 is 13002032422.

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 22423020031 - 2⁷ = 22423019903 is a prime.

It is a super-3 number, since 3×22423020031³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1180158949 = 22423020031 / (2 + 2 + 4 + 2 + 3 + 0 + 2 + 0 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22423019990 and 22423020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590079456 + ... + 590079493.

It is an arithmetic number, because the mean of its divisors is an integer number (5900794750).

Almost surely, 2^22423020031 is an apocalyptic number.

22423020031 is a deficient number, since it is larger than the sum of its proper divisors (1180158969).

22423020031 is a wasteful number, since it uses less digits than its factorization.

22423020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180158968.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22423020031 its reverse (13002032422), we get a palindrome (35425052453).

The spelling of 22423020031 in words is "twenty-two billion, four hundred twenty-three million, twenty thousand, thirty-one".