12301023021 has 16 divisors (see below), whose sum is σ = 18849139200. Its totient is φ = 6989884848.

The previous prime is 12301023019. The next prime is 12301023041. The reversal of 12301023021 is 12032010321.

It is not a de Polignac number, because 12301023021 - 2¹ = 12301023019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301023011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632451 + ... + 1639968.

It is an arithmetic number, because the mean of its divisors is an integer number (1178071200).

Almost surely, 2^12301023021 is an apocalyptic number.

It is an amenable number.

12301023021 is a deficient number, since it is larger than the sum of its proper divisors (6548116179).

12301023021 is a wasteful number, since it uses less digits than its factorization.

12301023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272608.

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

Adding to 12301023021 its reverse (12032010321), we get a palindrome (24333033342).

The spelling of 12301023021 in words is "twelve billion, three hundred one million, twenty-three thousand, twenty-one".