20022040431 has 64 divisors (see below), whose sum is σ = 31630832640. Its totient is φ = 12489966720.

The previous prime is 20022040429. The next prime is 20022040433. The reversal of 20022040431 is 13404022002.

It is an interprime number because it is at equal distance from previous prime (20022040429) and next prime (20022040433).

It is not a de Polignac number, because 20022040431 - 2¹ = 20022040429 is a prime.

It is a super-2 number, since 2×20022040431² (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 (20022040433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7461216 + ... + 7463898.

It is an arithmetic number, because the mean of its divisors is an integer number (494231760).

Almost surely, 2^20022040431 is an apocalyptic number.

20022040431 is a deficient number, since it is larger than the sum of its proper divisors (11608792209).

20022040431 is a wasteful number, since it uses less digits than its factorization.

20022040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20022040431 its reverse (13404022002), we get a palindrome (33426062433).

The spelling of 20022040431 in words is "twenty billion, twenty-two million, forty thousand, four hundred thirty-one".