331123211312131 has 8 divisors (see below), whose sum is σ = 394879854484224. Its totient is φ = 271479899957640.

The previous prime is 331123211312077. The next prime is 331123211312149. The reversal of 331123211312131 is 131213112321133.

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 331123211312131 - 2¹³ = 331123211303939 is a prime.

It is a super-2 number, since 2×331123211312131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331123211312131.

It is not an unprimeable number, because it can be changed into a prime (331123211322131) 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, 1028332954225 + ... + 1028332954546.

It is an arithmetic number, because the mean of its divisors is an integer number (49359981810528).

Almost surely, 2^{331123211312131} is an apocalyptic number.

331123211312131 is a deficient number, since it is larger than the sum of its proper divisors (63756643172093).

331123211312131 is a wasteful number, since it uses less digits than its factorization.

331123211312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056665908801.

The product of its digits is 1944, while the sum is 28.

Adding to 331123211312131 its reverse (131213112321133), we get a palindrome (462336323633264).

The spelling of 331123211312131 in words is "three hundred thirty-one trillion, one hundred twenty-three billion, two hundred eleven million, three hundred twelve thousand, one hundred thirty-one".