3111401331 has 6 divisors (see below), whose sum is σ = 4494246380. Its totient is φ = 2074267548.

The previous prime is 3111401309. The next prime is 3111401347. The reversal of 3111401331 is 1331041113.

It is not a de Polignac number, because 3111401331 - 2⁹ = 3111400819 is a prime.

It is a super-2 number, since 2×3111401331² = 19361636485097143122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111401231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172855621 + ... + 172855638.

Almost surely, 2^3111401331 is an apocalyptic number.

3111401331 is a deficient number, since it is larger than the sum of its proper divisors (1382845049).

3111401331 is a wasteful number, since it uses less digits than its factorization.

3111401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345711265 (or 345711262 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 3111401331 is about 55779.9366349586. The cubic root of 3111401331 is about 1459.8851055830.

Adding to 3111401331 its reverse (1331041113), we get a palindrome (4442442444).

The spelling of 3111401331 in words is "three billion, one hundred eleven million, four hundred one thousand, three hundred thirty-one".