12023021279 has 2 divisors, whose sum is σ = 12023021280. Its totient is φ = 12023021278.

The previous prime is 12023021209. The next prime is 12023021317. The reversal of 12023021279 is 97212032021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12023021279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12023021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011510639 + 6011510640.

It is an arithmetic number, because the mean of its divisors is an integer number (6011510640).

Almost surely, 2^12023021279 is an apocalyptic number.

12023021279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12023021279 is an equidigital number, since it uses as much as digits as its factorization.

12023021279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 12023021279 in words is "twelve billion, twenty-three million, twenty-one thousand, two hundred seventy-nine".