3121041631 has 8 divisors (see below), whose sum is σ = 3287809280. Its totient is φ = 2954524248.

The previous prime is 3121041629. The next prime is 3121041659. The reversal of 3121041631 is 1361401213.

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 3121041631 - 2¹ = 3121041629 is a prime.

It is a super-2 number, since 2×3121041631² = 19481801724870280322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121041661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36681 + ... + 87106.

It is an arithmetic number, because the mean of its divisors is an integer number (410976160).

Almost surely, 2^3121041631 is an apocalyptic number.

3121041631 is a deficient number, since it is larger than the sum of its proper divisors (166767649).

3121041631 is a wasteful number, since it uses less digits than its factorization.

3121041631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125133.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 3121041631 is about 55866.2834901338. The cubic root of 3121041631 is about 1461.3913100877.

Adding to 3121041631 its reverse (1361401213), we get a palindrome (4482442844).

The spelling of 3121041631 in words is "three billion, one hundred twenty-one million, forty-one thousand, six hundred thirty-one".