3131220304232 has 32 divisors (see below), whose sum is σ = 5878783872000. Its totient is φ = 1563545801664.

The previous prime is 3131220304229. The next prime is 3131220304273. The reversal of 3131220304232 is 2324030221313.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21364433 + ... + 21510495.

It is an arithmetic number, because the mean of its divisors is an integer number (183711996000).

Almost surely, 2^{3131220304232} is an apocalyptic number.

It is an amenable number.

3131220304232 is a deficient number, since it is larger than the sum of its proper divisors (2747563567768).

3131220304232 is a wasteful number, since it uses less digits than its factorization.

3131220304232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149585 (or 149581 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 3131220304232 its reverse (2324030221313), we get a palindrome (5455250525545).

The spelling of 3131220304232 in words is "three trillion, one hundred thirty-one billion, two hundred twenty million, three hundred four thousand, two hundred thirty-two".