12030102021 has 64 divisors (see below), whose sum is σ = 19063848960. Its totient is φ = 6606662400.

The previous prime is 12030102001. The next prime is 12030102023. The reversal of 12030102021 is 12020103021.

It is not a de Polignac number, because 12030102021 - 2¹⁰ = 12030100997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12030101988 and 12030102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030102023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11578020 + ... + 11579058.

It is an arithmetic number, because the mean of its divisors is an integer number (297872640).

Almost surely, 2^12030102021 is an apocalyptic number.

It is an amenable number.

12030102021 is a deficient number, since it is larger than the sum of its proper divisors (7033746939).

12030102021 is a wasteful number, since it uses less digits than its factorization.

12030102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12030102021 its reverse (12020103021), we get a palindrome (24050205042).

The spelling of 12030102021 in words is "twelve billion, thirty million, one hundred two thousand, twenty-one".