12023503511 has 2 divisors, whose sum is σ = 12023503512. Its totient is φ = 12023503510.

The previous prime is 12023503507. The next prime is 12023503517. The reversal of 12023503511 is 11530532021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12023503511 - 2² = 12023503507 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12023503517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011751755 + 6011751756.

It is an arithmetic number, because the mean of its divisors is an integer number (6011751756).

Almost surely, 2^12023503511 is an apocalyptic number.

12023503511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12023503511 is an equidigital number, since it uses as much as digits as its factorization.

12023503511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 12023503511 in words is "twelve billion, twenty-three million, five hundred three thousand, five hundred eleven".