11432312305 has 4 divisors (see below), whose sum is σ = 13718774772. Its totient is φ = 9145849840.

The previous prime is 11432312299. The next prime is 11432312317. The reversal of 11432312305 is 50321323411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50321323411 = 127 ⋅396230893.

It can be written as a sum of positive squares in 2 ways, for example, as 7148871601 + 4283440704 = 84551^2 + 65448^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11432312305 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 11432312305.

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, 1143231226 + ... + 1143231235.

It is an arithmetic number, because the mean of its divisors is an integer number (3429693693).

Almost surely, 2^11432312305 is an apocalyptic number.

It is an amenable number.

11432312305 is a deficient number, since it is larger than the sum of its proper divisors (2286462467).

11432312305 is an equidigital number, since it uses as much as digits as its factorization.

11432312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286462466.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 11432312305 its reverse (50321323411), we get a palindrome (61753635716).

The spelling of 11432312305 in words is "eleven billion, four hundred thirty-two million, three hundred twelve thousand, three hundred five".