123201031199 has 4 divisors (see below), whose sum is σ = 123203832864. Its totient is φ = 123198229536.

The previous prime is 123201031193. The next prime is 123201031201. The reversal of 123201031199 is 991130102321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991130102321 = 564779 ⋅1754899.

It is a cyclic number.

It is not a de Polignac number, because 123201031199 - 2⁸ = 123201030943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123201031193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333802 + ... + 1423175.

It is an arithmetic number, because the mean of its divisors is an integer number (30800958216).

Almost surely, 2^123201031199 is an apocalyptic number.

123201031199 is a deficient number, since it is larger than the sum of its proper divisors (2801665).

123201031199 is an equidigital number, since it uses as much as digits as its factorization.

123201031199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801664.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 123201031199 in words is "one hundred twenty-three billion, two hundred one million, thirty-one thousand, one hundred ninety-nine".