113321120123 has 16 divisors (see below), whose sum is σ = 116224295040. Its totient is φ = 110466443136.

The previous prime is 113321120117. The next prime is 113321120147. The reversal of 113321120123 is 321021123311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113321120123 - 2¹⁰ = 113321119099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113321120095 and 113321120104.

It is not an unprimeable number, because it can be changed into a prime (113321120113) 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, 1646936 + ... + 1714362.

It is an arithmetic number, because the mean of its divisors is an integer number (7264018440).

Almost surely, 2^113321120123 is an apocalyptic number.

113321120123 is a deficient number, since it is larger than the sum of its proper divisors (2903174917).

113321120123 is a wasteful number, since it uses less digits than its factorization.

113321120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67786.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113321120123 its reverse (321021123311), we get a palindrome (434342243434).

The spelling of 113321120123 in words is "one hundred thirteen billion, three hundred twenty-one million, one hundred twenty thousand, one hundred twenty-three".