123204658899 has 16 divisors (see below), whose sum is σ = 187766670080. Its totient is φ = 70392823200.

The previous prime is 123204658897. The next prime is 123204658933. The reversal of 123204658899 is 998856402321.

It is not a de Polignac number, because 123204658899 - 2¹ = 123204658897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123204658897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254752 + ... + 557949.

It is an arithmetic number, because the mean of its divisors is an integer number (11735416880).

Almost surely, 2^123204658899 is an apocalyptic number.

123204658899 is a deficient number, since it is larger than the sum of its proper divisors (64562011181).

123204658899 is an equidigital number, since it uses as much as digits as its factorization.

123204658899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819930.

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 123204658899 in words is "one hundred twenty-three billion, two hundred four million, six hundred fifty-eight thousand, eight hundred ninety-nine".