231202123099 has 2 divisors, whose sum is σ = 231202123100. Its totient is φ = 231202123098.

The previous prime is 231202123057. The next prime is 231202123211. The reversal of 231202123099 is 990321202132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231202123099 - 2²⁷ = 231067905371 is a prime.

It is not a weakly prime, because it can be changed into another prime (231202123039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601061549 + 115601061550.

It is an arithmetic number, because the mean of its divisors is an integer number (115601061550).

Almost surely, 2^231202123099 is an apocalyptic number.

231202123099 is a deficient number, since it is larger than the sum of its proper divisors (1).

231202123099 is an equidigital number, since it uses as much as digits as its factorization.

231202123099 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 34.

The spelling of 231202123099 in words is "two hundred thirty-one billion, two hundred two million, one hundred twenty-three thousand, ninety-nine".