331420131 has 24 divisors (see below), whose sum is σ = 547628640. Its totient is φ = 189202176.

The previous prime is 331420129. The next prime is 331420153. The reversal of 331420131 is 131024133.

It is not a de Polignac number, because 331420131 - 2¹ = 331420129 is a prime.

It is a super-2 number, since 2×331420131² = 219678606464114322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331421131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92041 + ... + 95573.

It is an arithmetic number, because the mean of its divisors is an integer number (22817860).

Almost surely, 2^331420131 is an apocalyptic number.

331420131 is a deficient number, since it is larger than the sum of its proper divisors (216208509).

331420131 is a wasteful number, since it uses less digits than its factorization.

331420131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5032 counting only the distinct ones).

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

The square root of 331420131 is about 18204.9479812495. The cubic root of 331420131 is about 692.0321878787.

Adding to 331420131 its reverse (131024133), we get a palindrome (462444264).

The spelling of 331420131 in words is "three hundred thirty-one million, four hundred twenty thousand, one hundred thirty-one".