20422000031 has 4 divisors (see below), whose sum is σ = 20445287112. Its totient is φ = 20398712952.

The previous prime is 20422000009. The next prime is 20422000037. The reversal of 20422000031 is 13000022402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13000022402 = 2 ⋅6500011201.

It is a cyclic number.

It is not a de Polignac number, because 20422000031 - 2¹⁸ = 20421737887 is a prime.

It is a super-2 number, since 2×20422000031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422000037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11642225 + ... + 11643978.

It is an arithmetic number, because the mean of its divisors is an integer number (5111321778).

Almost surely, 2^20422000031 is an apocalyptic number.

20422000031 is a deficient number, since it is larger than the sum of its proper divisors (23287081).

20422000031 is an equidigital number, since it uses as much as digits as its factorization.

20422000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23287080.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20422000031 its reverse (13000022402), we get a palindrome (33422022433).

The spelling of 20422000031 in words is "twenty billion, four hundred twenty-two million, thirty-one", and thus it is an aban number.