131022300021 has 8 divisors (see below), whose sum is σ = 174796062720. Its totient is φ = 87298368672.

The previous prime is 131022300011. The next prime is 131022300077. The reversal of 131022300021 is 120003220131.

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

It is not a de Polignac number, because 131022300021 - 2¹⁸ = 131022037877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022300011) 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, 12451701 + ... + 12462218.

It is an arithmetic number, because the mean of its divisors is an integer number (21849507840).

Almost surely, 2^131022300021 is an apocalyptic number.

It is an amenable number.

131022300021 is a deficient number, since it is larger than the sum of its proper divisors (43773762699).

131022300021 is a wasteful number, since it uses less digits than its factorization.

131022300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24915675.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131022300021 its reverse (120003220131), we get a palindrome (251025520152).

The spelling of 131022300021 in words is "one hundred thirty-one billion, twenty-two million, three hundred thousand, twenty-one".