3121321131031 has 8 divisors (see below), whose sum is σ = 3229649078400. Its totient is φ = 3013039596000.

The previous prime is 3121321131007. The next prime is 3121321131073. The reversal of 3121321131031 is 1301311231213.

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 3121321131031 - 2¹⁵ = 3121321098263 is a prime.

It is a super-2 number, since 2×3121321131031² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3121321130993 and 3121321131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121321131631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11466220 + ... + 11735281.

It is an arithmetic number, because the mean of its divisors is an integer number (403706134800).

Almost surely, 2^{3121321131031} is an apocalyptic number.

3121321131031 is a deficient number, since it is larger than the sum of its proper divisors (108327947369).

3121321131031 is a wasteful number, since it uses less digits than its factorization.

3121321131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23206169.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 3121321131031 its reverse (1301311231213), we get a palindrome (4422632362244).

The spelling of 3121321131031 in words is "three trillion, one hundred twenty-one billion, three hundred twenty-one million, one hundred thirty-one thousand, thirty-one".