331220200131 has 12 divisors (see below), whose sum is σ = 478462481952. Its totient is φ = 220798095696.

The previous prime is 331220200057. The next prime is 331220200169. The reversal of 331220200131 is 131002022133.

331220200131 is a `hidden beast` number, since 3 + 312 + 20 + 200 + 131 = 666.

It is not a de Polignac number, because 331220200131 - 2¹¹ = 331220198083 is a prime.

It is a super-2 number, since 2×331220200131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331220205131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1143676 + ... + 1403721.

It is an arithmetic number, because the mean of its divisors is an integer number (39871873496).

Almost surely, 2^331220200131 is an apocalyptic number.

331220200131 is a deficient number, since it is larger than the sum of its proper divisors (147242281821).

331220200131 is a wasteful number, since it uses less digits than its factorization.

331220200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561850 (or 2561847 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 331220200131 its reverse (131002022133), we get a palindrome (462222222264).

The spelling of 331220200131 in words is "three hundred thirty-one billion, two hundred twenty million, two hundred thousand, one hundred thirty-one".