100220020031 has 2 divisors, whose sum is σ = 100220020032. Its totient is φ = 100220020030.

The previous prime is 100220019973. The next prime is 100220020039. The reversal of 100220020031 is 130020022001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100220020031 - 2¹⁰ = 100220019007 is a prime.

It is a super-2 number, since 2×100220020031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100220019994 and 100220020021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220020039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110010015 + 50110010016.

It is an arithmetic number, because the mean of its divisors is an integer number (50110010016).

Almost surely, 2^100220020031 is an apocalyptic number.

100220020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220020031 is an equidigital number, since it uses as much as digits as its factorization.

100220020031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 100220020031 its reverse (130020022001), we get a palindrome (230240042032).

The spelling of 100220020031 in words is "one hundred billion, two hundred twenty million, twenty thousand, thirty-one".