321120021123 has 48 divisors (see below), whose sum is σ = 509862319200. Its totient is φ = 193137868800.

The previous prime is 321120021113. The next prime is 321120021139.

321120021123 is a `hidden beast` number, since 321 + 1 + 200 + 21 + 123 = 666.

321120021123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321120021123 - 2⁴ = 321120021107 is a prime.

It is a super-2 number, since 2×321120021123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321120021096 and 321120021105.

It is not an unprimeable number, because it can be changed into a prime (321120021113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17411715 + ... + 17430147.

It is an arithmetic number, because the mean of its divisors is an integer number (10622131650).

Almost surely, 2^321120021123 is an apocalyptic number.

321120021123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

321120021123 is a deficient number, since it is larger than the sum of its proper divisors (188742298077).

321120021123 is a wasteful number, since it uses less digits than its factorization.

321120021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19780 (or 19777 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 3211200 and 21123, that added together give a palindrome (3232323).

The spelling of 321120021123 in words is "three hundred twenty-one billion, one hundred twenty million, twenty-one thousand, one hundred twenty-three".