1235574137131 has 2 divisors, whose sum is σ = 1235574137132. Its totient is φ = 1235574137130.

The previous prime is 1235574137113. The next prime is 1235574137159. The reversal of 1235574137131 is 1317314755321.

Together with previous prime (1235574137113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1317314755321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1235574137131 - 2¹¹ = 1235574135083 is a prime.

It is a super-2 number, since 2×1235574137131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1235574137101) 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, 617787068565 + 617787068566.

It is an arithmetic number, because the mean of its divisors is an integer number (617787068566).

Almost surely, 2^{1235574137131} is an apocalyptic number.

1235574137131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235574137131 is an equidigital number, since it uses as much as digits as its factorization.

1235574137131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 43.

The spelling of 1235574137131 in words is "one trillion, two hundred thirty-five billion, five hundred seventy-four million, one hundred thirty-seven thousand, one hundred thirty-one".