123020111313 has 16 divisors (see below), whose sum is σ = 198820382400. Its totient is φ = 74557643040.

The previous prime is 123020111239. The next prime is 123020111327. The reversal of 123020111313 is 313111020321.

It is not a de Polignac number, because 123020111313 - 2²⁰ = 123019062737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123020111713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207104268 + ... + 207104861.

It is an arithmetic number, because the mean of its divisors is an integer number (12426273900).

Almost surely, 2^123020111313 is an apocalyptic number.

It is an amenable number.

123020111313 is a deficient number, since it is larger than the sum of its proper divisors (75800271087).

123020111313 is a wasteful number, since it uses less digits than its factorization.

123020111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414209149 (or 414209143 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123020111313 its reverse (313111020321), we get a palindrome (436131131634).

The spelling of 123020111313 in words is "one hundred twenty-three billion, twenty million, one hundred eleven thousand, three hundred thirteen".