131300123021 has 8 divisors (see below), whose sum is σ = 135959233080. Its totient is φ = 126649780992.

The previous prime is 131300123011. The next prime is 131300123051. The reversal of 131300123021 is 120321003131.

It can be written as a sum of positive squares in 4 ways, for example, as 101461360900 + 29838762121 = 318530^2 + 172739^2 .

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 131300123021 - 2²² = 131295928717 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 (131300123011) 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 7 ways as a sum of consecutive naturals, for example, 2161520 + ... + 2221433.

It is an arithmetic number, because the mean of its divisors is an integer number (16994904135).

Almost surely, 2^131300123021 is an apocalyptic number.

It is an amenable number.

131300123021 is a deficient number, since it is larger than the sum of its proper divisors (4659110059).

131300123021 is a wasteful number, since it uses less digits than its factorization.

131300123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384015.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131300123021 its reverse (120321003131), we get a palindrome (251621126152).

The spelling of 131300123021 in words is "one hundred thirty-one billion, three hundred million, one hundred twenty-three thousand, twenty-one".