320031120123 has 120 divisors (see below), whose sum is σ = 571905861120. Its totient is φ = 176765509440.

The previous prime is 320031120053. The next prime is 320031120137. The reversal of 320031120123 is 321021130023.

320031120123 is a `hidden beast` number, since 320 + 0 + 311 + 20 + 12 + 3 = 666.

It is not a de Polignac number, because 320031120123 - 2²⁰ = 320030071547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320031120096 and 320031120105.

It is not an unprimeable number, because it can be changed into a prime (320031120823) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 11882290 + ... + 11909192.

It is an arithmetic number, because the mean of its divisors is an integer number (4765882176).

Almost surely, 2^320031120123 is an apocalyptic number.

320031120123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

320031120123 is a deficient number, since it is larger than the sum of its proper divisors (251874740997).

320031120123 is a wasteful number, since it uses less digits than its factorization.

320031120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27031 (or 27009 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 320031120123 its reverse (321021130023), we get a palindrome (641052250146).

The spelling of 320031120123 in words is "three hundred twenty billion, thirty-one million, one hundred twenty thousand, one hundred twenty-three".