11455142131247 has 2 divisors, whose sum is σ = 11455142131248. Its totient is φ = 11455142131246.

The previous prime is 11455142131163. The next prime is 11455142131327. The reversal of 11455142131247 is 74213124155411.

It is a strong prime.

It is an emirp because it is prime and its reverse (74213124155411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11455142131247 - 2¹⁶ = 11455142065711 is a prime.

It is a super-2 number, since 2×11455142131247² (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 (11455142137247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5727571065623 + 5727571065624.

It is an arithmetic number, because the mean of its divisors is an integer number (5727571065624).

Almost surely, 2^{11455142131247} is an apocalyptic number.

11455142131247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11455142131247 is an equidigital number, since it uses as much as digits as its factorization.

11455142131247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

Adding to 11455142131247 its reverse (74213124155411), we get a palindrome (85668266286658).

The spelling of 11455142131247 in words is "eleven trillion, four hundred fifty-five billion, one hundred forty-two million, one hundred thirty-one thousand, two hundred forty-seven".