131220333304 has 16 divisors (see below), whose sum is σ = 246120210000. Its totient is φ = 65588277312.

The previous prime is 131220333281. The next prime is 131220333313. The reversal of 131220333304 is 403333022131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710677 + ... + 2758660.

It is an arithmetic number, because the mean of its divisors is an integer number (15382513125).

Almost surely, 2^131220333304 is an apocalyptic number.

It is an amenable number.

131220333304 is a deficient number, since it is larger than the sum of its proper divisors (114899876696).

131220333304 is a wasteful number, since it uses less digits than its factorization.

131220333304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472342 (or 5472338 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 131220333304 its reverse (403333022131), we get a palindrome (534553355435).

The spelling of 131220333304 in words is "one hundred thirty-one billion, two hundred twenty million, three hundred thirty-three thousand, three hundred four".