3121030203131 has 8 divisors (see below), whose sum is σ = 3124924149360. Its totient is φ = 3117137256288.

The previous prime is 3121030203103. The next prime is 3121030203139. The reversal of 3121030203131 is 1313020301213.

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 3121030203131 - 2²² = 3121026008827 is a prime.

It is a super-2 number, since 2×3121030203131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121030203139) 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, 6100385 + ... + 6592173.

It is an arithmetic number, because the mean of its divisors is an integer number (390615518670).

Almost surely, 2^{3121030203131} is an apocalyptic number.

3121030203131 is a deficient number, since it is larger than the sum of its proper divisors (3893946229).

3121030203131 is an equidigital number, since it uses as much as digits as its factorization.

3121030203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499693.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 3121030203131 its reverse (1313020301213), we get a palindrome (4434050504344).

The spelling of 3121030203131 in words is "three trillion, one hundred twenty-one billion, thirty million, two hundred three thousand, one hundred thirty-one".