3081312631 has 8 divisors (see below), whose sum is σ = 3244025600. Its totient is φ = 2918653560.

The previous prime is 3081312629. The next prime is 3081312649. The reversal of 3081312631 is 1362131803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3081312631 - 2¹ = 3081312629 is a prime.

It is a super-2 number, since 2×3081312631² = 18988975059920284322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3081312631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081312131) 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 7 ways as a sum of consecutive naturals, for example, 163810 + ... + 181648.

It is an arithmetic number, because the mean of its divisors is an integer number (405503200).

Almost surely, 2^3081312631 is an apocalyptic number.

3081312631 is a deficient number, since it is larger than the sum of its proper divisors (162712969).

3081312631 is a wasteful number, since it uses less digits than its factorization.

3081312631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26949.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3081312631 is about 55509.5724267446. The cubic root of 3081312631 is about 1455.1639310972.

The spelling of 3081312631 in words is "three billion, eighty-one million, three hundred twelve thousand, six hundred thirty-one".