3131210322101 has 4 divisors (see below), whose sum is σ = 3155112691104. Its totient is φ = 3107307953100.

The previous prime is 3131210321893. The next prime is 3131210322113. The reversal of 3131210322101 is 1012230121313.

It is a happy number.

3131210322101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131210322101 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 (3131210322131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11951184305 + ... + 11951184566.

It is an arithmetic number, because the mean of its divisors is an integer number (788778172776).

Almost surely, 2^{3131210322101} is an apocalyptic number.

It is an amenable number.

3131210322101 is a deficient number, since it is larger than the sum of its proper divisors (23902369003).

3131210322101 is a wasteful number, since it uses less digits than its factorization.

3131210322101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902369002.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3131210322101 its reverse (1012230121313), we get a palindrome (4143440443414).

The spelling of 3131210322101 in words is "three trillion, one hundred thirty-one billion, two hundred ten million, three hundred twenty-two thousand, one hundred one".