131421103304 has 32 divisors (see below), whose sum is σ = 252181237440. Its totient is φ = 64173211200.

The previous prime is 131421103301. The next prime is 131421103309. The reversal of 131421103304 is 403301124131.

It is a self number, because there is not a number n which added to its sum of digits gives 131421103304.

It is not an unprimeable number, because it can be changed into a prime (131421103301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804789 + ... + 2851259.

It is an arithmetic number, because the mean of its divisors is an integer number (7880663670).

Almost surely, 2^131421103304 is an apocalyptic number.

It is an amenable number.

131421103304 is a deficient number, since it is larger than the sum of its proper divisors (120760134136).

131421103304 is a wasteful number, since it uses less digits than its factorization.

131421103304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54741 (or 54737 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131421103304 its reverse (403301124131), we get a palindrome (534722227435).

The spelling of 131421103304 in words is "one hundred thirty-one billion, four hundred twenty-one million, one hundred three thousand, three hundred four".