100123103231 has 2 divisors, whose sum is σ = 100123103232. Its totient is φ = 100123103230.

The previous prime is 100123103183. The next prime is 100123103237. The reversal of 100123103231 is 132301321001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100123103231 - 2¹⁸ = 100122841087 is a prime.

It is a super-2 number, since 2×100123103231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100123103237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061551615 + 50061551616.

It is an arithmetic number, because the mean of its divisors is an integer number (50061551616).

Almost surely, 2^100123103231 is an apocalyptic number.

100123103231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100123103231 is an equidigital number, since it uses as much as digits as its factorization.

100123103231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100123103231 its reverse (132301321001), we get a palindrome (232424424232).

The spelling of 100123103231 in words is "one hundred billion, one hundred twenty-three million, one hundred three thousand, two hundred thirty-one".