131012331323221 has 8 divisors (see below), whose sum is σ = 131595456104064. Its totient is φ = 130429258980960.

The previous prime is 131012331323191. The next prime is 131012331323231. The reversal of 131012331323221 is 122323133210131.

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 131012331323221 - 2¹¹ = 131012331321173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131012331323221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012331323231) 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, 8097480 + ... + 18099553.

It is an arithmetic number, because the mean of its divisors is an integer number (16449432013008).

Almost surely, 2^{131012331323221} is an apocalyptic number.

It is an amenable number.

131012331323221 is a deficient number, since it is larger than the sum of its proper divisors (583124780843).

131012331323221 is a wasteful number, since it uses less digits than its factorization.

131012331323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26219291.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131012331323221 its reverse (122323133210131), we get a palindrome (253335464533352).

The spelling of 131012331323221 in words is "one hundred thirty-one trillion, twelve billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-one".