3120723456 has 80 divisors (see below), whose sum is σ = 8802923184. Its totient is φ = 979042304.

The previous prime is 3120723451. The next prime is 3120723481. The reversal of 3120723456 is 6543270213.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120723451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33645 + ... + 85868.

Almost surely, 2^3120723456 is an apocalyptic number.

It is an amenable number.

3120723456 is an abundant number, since it is smaller than the sum of its proper divisors (5682199728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3120723456 is a wasteful number, since it uses less digits than its factorization.

3120723456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119551 (or 119535 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 3120723456 is about 55863.4357697412. The cubic root of 3120723456 is about 1461.3416478236.

Adding to 3120723456 its reverse (6543270213), we get a palindrome (9663993669).

The spelling of 3120723456 in words is "three billion, one hundred twenty million, seven hundred twenty-three thousand, four hundred fifty-six".