100103231989 has 2 divisors, whose sum is σ = 100103231990. Its totient is φ = 100103231988.

The previous prime is 100103231951. The next prime is 100103232013. The reversal of 100103231989 is 989132301001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97557524964 + 2545707025 = 312342^2 + 50455^2 .

It is a cyclic number.

It is not a de Polignac number, because 100103231989 - 2¹³ = 100103223797 is a prime.

It is a super-2 number, since 2×100103231989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100103231089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051615994 + 50051615995.

It is an arithmetic number, because the mean of its divisors is an integer number (50051615995).

Almost surely, 2^100103231989 is an apocalyptic number.

It is an amenable number.

100103231989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100103231989 is an equidigital number, since it uses as much as digits as its factorization.

100103231989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 100103231989 in words is "one hundred billion, one hundred three million, two hundred thirty-one thousand, nine hundred eighty-nine".