12030023111021 has 8 divisors (see below), whose sum is σ = 12104349371040. Its totient is φ = 11955703222512.

The previous prime is 12030023111017. The next prime is 12030023111039. The reversal of 12030023111021 is 12011132003021.

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 12030023111021 - 2² = 12030023111017 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 (12030023111221) 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, 2223131 + ... + 5385383.

It is an arithmetic number, because the mean of its divisors is an integer number (1513043671380).

Almost surely, 2^{12030023111021} is an apocalyptic number.

It is an amenable number.

12030023111021 is a deficient number, since it is larger than the sum of its proper divisors (74326260019).

12030023111021 is a wasteful number, since it uses less digits than its factorization.

12030023111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185755.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12030023111021 its reverse (12011132003021), we get a palindrome (24041155114042).

The spelling of 12030023111021 in words is "twelve trillion, thirty billion, twenty-three million, one hundred eleven thousand, twenty-one".