20422002031 has 2 divisors, whose sum is σ = 20422002032. Its totient is φ = 20422002030.

The previous prime is 20422002019. The next prime is 20422002049. The reversal of 20422002031 is 13020022402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20422002031 - 2²⁷ = 20287784303 is a prime.

It is a super-2 number, since 2×20422002031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20422001996 and 20422002014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20422002071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211001015 + 10211001016.

It is an arithmetic number, because the mean of its divisors is an integer number (10211001016).

Almost surely, 2^20422002031 is an apocalyptic number.

20422002031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20422002031 is an equidigital number, since it uses as much as digits as its factorization.

20422002031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20422002031 its reverse (13020022402), we get a palindrome (33442024433).

The spelling of 20422002031 in words is "twenty billion, four hundred twenty-two million, two thousand, thirty-one".