12311140235 has 4 divisors (see below), whose sum is σ = 14773368288. Its totient is φ = 9848912184.

The previous prime is 12311140217. The next prime is 12311140249. The reversal of 12311140235 is 53204111321.

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 12311140235 - 2⁸ = 12311139979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12311140235.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231114019 + ... + 1231114028.

It is an arithmetic number, because the mean of its divisors is an integer number (3693342072).

Almost surely, 2^12311140235 is an apocalyptic number.

12311140235 is a deficient number, since it is larger than the sum of its proper divisors (2462228053).

12311140235 is an equidigital number, since it uses as much as digits as its factorization.

12311140235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462228052.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12311140235 its reverse (53204111321), we get a palindrome (65515251556).

The spelling of 12311140235 in words is "twelve billion, three hundred eleven million, one hundred forty thousand, two hundred thirty-five".