12301002123021 has 10 divisors (see below), whose sum is σ = 18375571072782. Its totient is φ = 8200668081960.

The previous prime is 12301002122977. The next prime is 12301002123023. The reversal of 12301002123021 is 12032120010321.

It can be written as a sum of positive squares in only one way, i.e., 8171531070921 + 4129471052100 = 2858589^2 + 2032110^2 .

It is not a de Polignac number, because 12301002123021 - 2²⁶ = 12300935014157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12301002122985 and 12301002123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301002123023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75932111790 + ... + 75932111951.

Almost surely, 2^{12301002123021} is an apocalyptic number.

It is an amenable number.

12301002123021 is a deficient number, since it is larger than the sum of its proper divisors (6074568949761).

12301002123021 is an equidigital number, since it uses as much as digits as its factorization.

12301002123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151864223753 (or 151864223744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12301002123021 its reverse (12032120010321), we get a palindrome (24333122133342).

The spelling of 12301002123021 in words is "twelve trillion, three hundred one billion, two million, one hundred twenty-three thousand, twenty-one".