131025132221 has 8 divisors (see below), whose sum is σ = 131934720000. Its totient is φ = 130116834432.

The previous prime is 131025132209. The next prime is 131025132247. The reversal of 131025132221 is 122231520131.

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 131025132221 - 2¹⁰ = 131025131197 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 (131025132421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118205 + ... + 525378.

It is an arithmetic number, because the mean of its divisors is an integer number (16491840000).

Almost surely, 2^131025132221 is an apocalyptic number.

It is an amenable number.

131025132221 is a deficient number, since it is larger than the sum of its proper divisors (909587779).

131025132221 is a wasteful number, since it uses less digits than its factorization.

131025132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644995.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 131025132221 its reverse (122231520131), we get a palindrome (253256652352).

The spelling of 131025132221 in words is "one hundred thirty-one billion, twenty-five million, one hundred thirty-two thousand, two hundred twenty-one".