3131331021413 has 8 divisors (see below), whose sum is σ = 3637330648320. Its totient is φ = 2639998050480.

The previous prime is 3131331021383. The next prime is 3131331021449. The reversal of 3131331021413 is 3141201331313.

It is a happy number.

3131331021413 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3131331021413 - 2¹² = 3131331017317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131331020413) 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, 3666663533 + ... + 3666664386.

It is an arithmetic number, because the mean of its divisors is an integer number (454666331040).

Almost surely, 2^{3131331021413} is an apocalyptic number.

It is an amenable number.

3131331021413 is a deficient number, since it is larger than the sum of its proper divisors (505999626907).

3131331021413 is an equidigital number, since it uses as much as digits as its factorization.

3131331021413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333327987.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 3131331021413 its reverse (3141201331313), we get a palindrome (6272532352726).

The spelling of 3131331021413 in words is "three trillion, one hundred thirty-one billion, three hundred thirty-one million, twenty-one thousand, four hundred thirteen".