131313200221300 has 36 divisors (see below), whose sum is σ = 284974049655820. Its totient is φ = 52520781438720.

The previous prime is 131313200221283. The next prime is 131313200221321. The reversal of 131313200221300 is 3122002313131.

It can be written as a sum of positive squares in 6 ways, for example, as 7470622763536 + 123842577457764 = 2733244^2 + 11128458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55059585 + ... + 57394984.

Almost surely, 2^{131313200221300} is an apocalyptic number.

131313200221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131313200221300 is an abundant number, since it is smaller than the sum of its proper divisors (153660849434520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131313200221300 is a wasteful number, since it uses less digits than its factorization.

131313200221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112466260 (or 112466253 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131313200221300 its reverse (3122002313131), we get a palindrome (134435202534431).

The spelling of 131313200221300 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred twenty-one thousand, three hundred".