12432110235557 has 2 divisors, whose sum is σ = 12432110235558. Its totient is φ = 12432110235556.

The previous prime is 12432110235509. The next prime is 12432110235577. The reversal of 12432110235557 is 75553201123421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12261944910436 + 170165325121 = 3501706^2 + 412511^2 .

It is a cyclic number.

It is not a de Polignac number, because 12432110235557 - 2¹² = 12432110231461 is a prime.

It is a super-2 number, since 2×12432110235557² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12432110235577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216055117778 + 6216055117779.

It is an arithmetic number, because the mean of its divisors is an integer number (6216055117779).

Almost surely, 2^{12432110235557} is an apocalyptic number.

It is an amenable number.

12432110235557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432110235557 is an equidigital number, since it uses as much as digits as its factorization.

12432110235557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 41.

Adding to 12432110235557 its reverse (75553201123421), we get a palindrome (87985311358978).

The spelling of 12432110235557 in words is "twelve trillion, four hundred thirty-two billion, one hundred ten million, two hundred thirty-five thousand, five hundred fifty-seven".