100310231209 has 2 divisors, whose sum is σ = 100310231210. Its totient is φ = 100310231208.

The previous prime is 100310231191. The next prime is 100310231237. The reversal of 100310231209 is 902132013001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90362163609 + 9948067600 = 300603^2 + 99740^2 .

It is a cyclic number.

It is not a de Polignac number, because 100310231209 - 2⁹ = 100310230697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100310231209.

It is not a weakly prime, because it can be changed into another prime (100310238209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50155115604 + 50155115605.

It is an arithmetic number, because the mean of its divisors is an integer number (50155115605).

Almost surely, 2^100310231209 is an apocalyptic number.

It is an amenable number.

100310231209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100310231209 is an equidigital number, since it uses as much as digits as its factorization.

100310231209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 100310231209 in words is "one hundred billion, three hundred ten million, two hundred thirty-one thousand, two hundred nine".