20102220031 has 2 divisors, whose sum is σ = 20102220032. Its totient is φ = 20102220030.

The previous prime is 20102220007. The next prime is 20102220053. The reversal of 20102220031 is 13002220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102220031 - 2⁹ = 20102219519 is a prime.

It is a super-2 number, since 2×20102220031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20102219993 and 20102220020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102220071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051110015 + 10051110016.

It is an arithmetic number, because the mean of its divisors is an integer number (10051110016).

Almost surely, 2^20102220031 is an apocalyptic number.

20102220031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102220031 is an equidigital number, since it uses as much as digits as its factorization.

20102220031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20102220031 its reverse (13002220102), we get a palindrome (33104440133).

The spelling of 20102220031 in words is "twenty billion, one hundred two million, two hundred twenty thousand, thirty-one".