131401827221 has 12 divisors (see below), whose sum is σ = 153747158112. Its totient is φ = 110010821256.

The previous prime is 131401827203. The next prime is 131401827223. The reversal of 131401827221 is 122728104131.

It is a de Polignac number, because none of the positive numbers 2^k-131401827221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131401827223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5063231 + ... + 5089116.

It is an arithmetic number, because the mean of its divisors is an integer number (12812263176).

Almost surely, 2^131401827221 is an apocalyptic number.

It is an amenable number.

131401827221 is a deficient number, since it is larger than the sum of its proper divisors (22345330891).

131401827221 is an equidigital number, since it uses as much as digits as its factorization.

131401827221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10152440 (or 10152397 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 131401827221 in words is "one hundred thirty-one billion, four hundred one million, eight hundred twenty-seven thousand, two hundred twenty-one".