12232521551 has 2 divisors, whose sum is σ = 12232521552. Its totient is φ = 12232521550.

The previous prime is 12232521533. The next prime is 12232521557. The reversal of 12232521551 is 15512523221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12232521551 - 2⁶ = 12232521487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232521557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116260775 + 6116260776.

It is an arithmetic number, because the mean of its divisors is an integer number (6116260776).

Almost surely, 2^12232521551 is an apocalyptic number.

12232521551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232521551 is an equidigital number, since it uses as much as digits as its factorization.

12232521551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 29.

The spelling of 12232521551 in words is "twelve billion, two hundred thirty-two million, five hundred twenty-one thousand, five hundred fifty-one".