12301031130021 has 6 divisors (see below), whose sum is σ = 17768156076710. Its totient is φ = 8200687420008.

The previous prime is 12301031129987. The next prime is 12301031130023. The reversal of 12301031130021 is 12003113010321.

12301031130021 is a `hidden beast` number, since 1 + 2 + 30 + 1 + 0 + 311 + 300 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12010279392225 + 290751737796 = 3465585^2 + 539214^2 .

It is not a de Polignac number, because 12301031130021 - 2⁶ = 12301031129957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12301031129976 and 12301031130003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301031130023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683390618326 + ... + 683390618343.

Almost surely, 2^{12301031130021} is an apocalyptic number.

It is an amenable number.

12301031130021 is a deficient number, since it is larger than the sum of its proper divisors (5467124946689).

12301031130021 is a wasteful number, since it uses less digits than its factorization.

12301031130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366781236675 (or 1366781236672 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12301031130021 its reverse (12003113010321), we get a palindrome (24304144140342).

The spelling of 12301031130021 in words is "twelve trillion, three hundred one billion, thirty-one million, one hundred thirty thousand, twenty-one".