235136126431 has 4 divisors (see below), whose sum is σ = 235411785112. Its totient is φ = 234860467752.

The previous prime is 235136126363. The next prime is 235136126437. The reversal of 235136126431 is 134621631532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 235136126431 - 2²⁵ = 235102571999 is a prime.

It is a super-2 number, since 2×235136126431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235136126437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137828061 + ... + 137829766.

It is an arithmetic number, because the mean of its divisors is an integer number (58852946278).

Almost surely, 2^235136126431 is an apocalyptic number.

235136126431 is a deficient number, since it is larger than the sum of its proper divisors (275658681).

235136126431 is an equidigital number, since it uses as much as digits as its factorization.

235136126431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275658680.

The product of its digits is 77760, while the sum is 37.

Adding to 235136126431 its reverse (134621631532), we get a palindrome (369757757963).

The spelling of 235136126431 in words is "two hundred thirty-five billion, one hundred thirty-six million, one hundred twenty-six thousand, four hundred thirty-one".