3120401331 has 18 divisors (see below), whose sum is σ = 4756960260. Its totient is φ = 1970777736.

The previous prime is 3120401239. The next prime is 3120401411. The reversal of 3120401331 is 1331040213.

It is not a de Polignac number, because 3120401331 - 2⁷ = 3120401203 is a prime.

It is a super-2 number, since 2×3120401331² = 19473808933013143122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3120401231) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 476961 + ... + 483458.

It is an arithmetic number, because the mean of its divisors is an integer number (264275570).

Almost surely, 2^3120401331 is an apocalyptic number.

3120401331 is a deficient number, since it is larger than the sum of its proper divisors (1636558929).

3120401331 is a wasteful number, since it uses less digits than its factorization.

3120401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960463 (or 960441 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3120401331 is about 55860.5525482876. The cubic root of 3120401331 is about 1461.2913655859.

Adding to 3120401331 its reverse (1331040213), we get a palindrome (4451441544).

The spelling of 3120401331 in words is "three billion, one hundred twenty million, four hundred one thousand, three hundred thirty-one".