3123142320 has 80 divisors (see below), whose sum is σ = 9818157312. Its totient is φ = 821103360.

The previous prime is 3123142307. The next prime is 3123142387. The reversal of 3123142320 is 232413213.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74602 + ... + 108681.

Almost surely, 2^3123142320 is an apocalyptic number.

3123142320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123142320 is an abundant number, since it is smaller than the sum of its proper divisors (6695014992).

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

3123142320 is a wasteful number, since it uses less digits than its factorization.

3123142320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183370 (or 183364 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3123142320 is about 55885.0813724021. The cubic root of 3123142320 is about 1461.7191109214.

Adding to 3123142320 its reverse (232413213), we get a palindrome (3355555533).

The spelling of 3123142320 in words is "three billion, one hundred twenty-three million, one hundred forty-two thousand, three hundred twenty".