3120340431 has 16 divisors (see below), whose sum is σ = 4503714656. Its totient is φ = 1910255616.

The previous prime is 3120340423. The next prime is 3120340453. The reversal of 3120340431 is 1340430213.

It is not a de Polignac number, because 3120340431 - 2³ = 3120340423 is a prime.

It is a super-2 number, since 2×3120340431² = 19473048810666531522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120340398 and 3120340407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120340331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199750 + ... + 214803.

It is an arithmetic number, because the mean of its divisors is an integer number (281482166).

Almost surely, 2^3120340431 is an apocalyptic number.

3120340431 is a deficient number, since it is larger than the sum of its proper divisors (1383374225).

3120340431 is a wasteful number, since it uses less digits than its factorization.

3120340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414762.

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

The square root of 3120340431 is about 55860.0074382380. The cubic root of 3120340431 is about 1461.2818589858.

Adding to 3120340431 its reverse (1340430213), we get a palindrome (4460770644).

The spelling of 3120340431 in words is "three billion, one hundred twenty million, three hundred forty thousand, four hundred thirty-one".