3121334031 has 4 divisors (see below), whose sum is σ = 4161778712. Its totient is φ = 2080889352.

The previous prime is 3121334017. The next prime is 3121334057. The reversal of 3121334031 is 1304331213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3121334031 - 2¹⁵ = 3121301263 is a prime.

It is a super-2 number, since 2×3121334031² = 19485452266157417922, 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 = 3121333989 and 3121334007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121334081) 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 3 ways as a sum of consecutive naturals, for example, 520222336 + ... + 520222341.

It is an arithmetic number, because the mean of its divisors is an integer number (1040444678).

Almost surely, 2^3121334031 is an apocalyptic number.

3121334031 is a deficient number, since it is larger than the sum of its proper divisors (1040444681).

3121334031 is a wasteful number, since it uses less digits than its factorization.

3121334031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040444680.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3121334031 is about 55868.9003918996. The cubic root of 3121334031 is about 1461.4369462915.

Adding to 3121334031 its reverse (1304331213), we get a palindrome (4425665244).

The spelling of 3121334031 in words is "three billion, one hundred twenty-one million, three hundred thirty-four thousand, thirty-one".