123111000100113 has 4 divisors (see below), whose sum is σ = 164148000133488. Its totient is φ = 82074000066740.

The previous prime is 123111000100057. The next prime is 123111000100133. The reversal of 123111000100113 is 311001000111321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123111000100113 - 2³⁷ = 122973561146641 is a prime.

It is a super-2 number, since 2×123111000100113² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123111000100092 and 123111000100101.

It is not an unprimeable number, because it can be changed into a prime (123111000100133) 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, 20518500016683 + ... + 20518500016688.

It is an arithmetic number, because the mean of its divisors is an integer number (41037000033372).

Almost surely, 2^{123111000100113} is an apocalyptic number.

It is an amenable number.

123111000100113 is a deficient number, since it is larger than the sum of its proper divisors (41037000033375).

123111000100113 is an equidigital number, since it uses as much as digits as its factorization.

123111000100113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41037000033374.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 123111000100113 its reverse (311001000111321), we get a palindrome (434112000211434).

The spelling of 123111000100113 in words is "one hundred twenty-three trillion, one hundred eleven billion, one hundred thousand, one hundred thirteen".