12135152261431 has 2 divisors, whose sum is σ = 12135152261432. Its totient is φ = 12135152261430.

The previous prime is 12135152261429. The next prime is 12135152261437. The reversal of 12135152261431 is 13416225153121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12135152261431 - 2¹ = 12135152261429 is a prime.

It is a super-2 number, since 2×12135152261431² (a number of 27 digits) contains 22 as substring.

Together with 12135152261429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12135152261437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067576130715 + 6067576130716.

It is an arithmetic number, because the mean of its divisors is an integer number (6067576130716).

Almost surely, 2^{12135152261431} is an apocalyptic number.

12135152261431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135152261431 is an equidigital number, since it uses as much as digits as its factorization.

12135152261431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The spelling of 12135152261431 in words is "twelve trillion, one hundred thirty-five billion, one hundred fifty-two million, two hundred sixty-one thousand, four hundred thirty-one".