331101213131 has 4 divisors (see below), whose sum is σ = 356570537232. Its totient is φ = 305631889032.

The previous prime is 331101213109. The next prime is 331101213139. The reversal of 331101213131 is 131312101133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331101213131 - 2¹⁴ = 331101196747 is a prime.

It is a super-2 number, since 2×331101213131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331101213139) 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, 12734662031 + ... + 12734662056.

It is an arithmetic number, because the mean of its divisors is an integer number (89142634308).

Almost surely, 2^331101213131 is an apocalyptic number.

331101213131 is a deficient number, since it is larger than the sum of its proper divisors (25469324101).

331101213131 is a wasteful number, since it uses less digits than its factorization.

331101213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25469324100.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 331101213131 its reverse (131312101133), we get a palindrome (462413314264).

The spelling of 331101213131 in words is "three hundred thirty-one billion, one hundred one million, two hundred thirteen thousand, one hundred thirty-one".