320440012124 has 12 divisors (see below), whose sum is σ = 590284233000. Its totient is φ = 151787374128.

The previous prime is 320440012069. The next prime is 320440012129. The reversal of 320440012124 is 421210044023.

It is a self number, because there is not a number n which added to its sum of digits gives 320440012124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320440012129) 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, 2108157899 + ... + 2108158050.

It is an arithmetic number, because the mean of its divisors is an integer number (49190352750).

Almost surely, 2^320440012124 is an apocalyptic number.

It is an amenable number.

320440012124 is a deficient number, since it is larger than the sum of its proper divisors (269844220876).

320440012124 is a wasteful number, since it uses less digits than its factorization.

320440012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216315972 (or 4216315970 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 320440012124 its reverse (421210044023), we get a palindrome (741650056147).

The spelling of 320440012124 in words is "three hundred twenty billion, four hundred forty million, twelve thousand, one hundred twenty-four".