100323103931 has 2 divisors, whose sum is σ = 100323103932. Its totient is φ = 100323103930.

The previous prime is 100323103921. The next prime is 100323103949. The reversal of 100323103931 is 139301323001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100323103931 is a prime.

It is a super-2 number, since 2×100323103931² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100323103931.

It is not a weakly prime, because it can be changed into another prime (100323103921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50161551965 + 50161551966.

It is an arithmetic number, because the mean of its divisors is an integer number (50161551966).

Almost surely, 2^100323103931 is an apocalyptic number.

100323103931 is a deficient number, since it is larger than the sum of its proper divisors (1).

100323103931 is an equidigital number, since it uses as much as digits as its factorization.

100323103931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 100323103931 its reverse (139301323001), we get a palindrome (239624426932).

The spelling of 100323103931 in words is "one hundred billion, three hundred twenty-three million, one hundred three thousand, nine hundred thirty-one".