131151324221 has 8 divisors (see below), whose sum is σ = 132023606784. Its totient is φ = 130279509360.

The previous prime is 131151324197. The next prime is 131151324251. The reversal of 131151324221 is 122423151131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131151324221 - 2²⁶ = 131084215357 is a prime.

It is a super-2 number, since 2×131151324221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131151324251) 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, 455036 + ... + 685098.

It is an arithmetic number, because the mean of its divisors is an integer number (16502950848).

Almost surely, 2^131151324221 is an apocalyptic number.

It is an amenable number.

131151324221 is a deficient number, since it is larger than the sum of its proper divisors (872282563).

131151324221 is a wasteful number, since it uses less digits than its factorization.

131151324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233851.

The product of its digits is 1440, while the sum is 26.

Adding to 131151324221 its reverse (122423151131), we get a palindrome (253574475352).

The spelling of 131151324221 in words is "one hundred thirty-one billion, one hundred fifty-one million, three hundred twenty-four thousand, two hundred twenty-one".