131221300133330 has 16 divisors (see below), whose sum is σ = 257670916625664. Its totient is φ = 47716836412080.

The previous prime is 131221300133303. The next prime is 131221300133359. The reversal of 131221300133330 is 33331003122131.

It is a self number, because there is not a number n which added to its sum of digits gives 131221300133330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596460455042 + ... + 596460455261.

It is an arithmetic number, because the mean of its divisors is an integer number (16104432289104).

Almost surely, 2^{131221300133330} is an apocalyptic number.

131221300133330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131221300133330 is a deficient number, since it is larger than the sum of its proper divisors (126449616492334).

131221300133330 is a wasteful number, since it uses less digits than its factorization.

131221300133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192920910321.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 131221300133330 its reverse (33331003122131), we get a palindrome (164552303255461).

The spelling of 131221300133330 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred million, one hundred thirty-three thousand, three hundred thirty".