12565124233 has 2 divisors, whose sum is σ = 12565124234. Its totient is φ = 12565124232.

The previous prime is 12565124179. The next prime is 12565124267. The reversal of 12565124233 is 33242156521.

It is an a-pointer prime, because the next prime (12565124267) can be obtained adding 12565124233 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12344987664 + 220136569 = 111108^2 + 14837^2 .

It is a cyclic number.

It is not a de Polignac number, because 12565124233 - 2²⁵ = 12531569801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12565124293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282562116 + 6282562117.

It is an arithmetic number, because the mean of its divisors is an integer number (6282562117).

Almost surely, 2^12565124233 is an apocalyptic number.

It is an amenable number.

12565124233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12565124233 is an equidigital number, since it uses as much as digits as its factorization.

12565124233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The spelling of 12565124233 in words is "twelve billion, five hundred sixty-five million, one hundred twenty-four thousand, two hundred thirty-three".