131344354012221 has 24 divisors (see below), whose sum is σ = 216828900887040. Its totient is φ = 75051675157536.

The previous prime is 131344354012217. The next prime is 131344354012229. The reversal of 131344354012221 is 122210453443131.

131344354012221 is a `hidden beast` number, since 1 + 3 + 1 + 34 + 43 + 540 + 1 + 22 + 21 = 666.

It is not a de Polignac number, because 131344354012221 - 2² = 131344354012217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344354012229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29003406 + ... + 33224783.

It is an arithmetic number, because the mean of its divisors is an integer number (9034537536960).

Almost surely, 2^{131344354012221} is an apocalyptic number.

It is an amenable number.

131344354012221 is a deficient number, since it is larger than the sum of its proper divisors (85484546874819).

131344354012221 is a wasteful number, since it uses less digits than its factorization.

131344354012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62261705 (or 62261702 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 131344354012221 in words is "one hundred thirty-one trillion, three hundred forty-four billion, three hundred fifty-four million, twelve thousand, two hundred twenty-one".