12303250021 has 2 divisors, whose sum is σ = 12303250022. Its totient is φ = 12303250020.

The previous prime is 12303249991. The next prime is 12303250051. The reversal of 12303250021 is 12005230321.

It is a balanced prime because it is at equal distance from previous prime (12303249991) and next prime (12303250051).

It can be written as a sum of positive squares in only one way, i.e., 10258853796 + 2044396225 = 101286^2 + 45215^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303250021 - 2²³ = 12294861413 is a prime.

It is a super-2 number, since 2×12303250021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12303250051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151625010 + 6151625011.

It is an arithmetic number, because the mean of its divisors is an integer number (6151625011).

Almost surely, 2^12303250021 is an apocalyptic number.

It is an amenable number.

12303250021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303250021 is an equidigital number, since it uses as much as digits as its factorization.

12303250021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 12303250021 its reverse (12005230321), we get a palindrome (24308480342).

The spelling of 12303250021 in words is "twelve billion, three hundred three million, two hundred fifty thousand, twenty-one".