12235403261 has 4 divisors (see below), whose sum is σ = 12283012092. Its totient is φ = 12187794432.

The previous prime is 12235403231. The next prime is 12235403321. The reversal of 12235403261 is 16230453221.

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: 16230453221 = 5023 ⋅3231227.

It can be written as a sum of positive squares in 2 ways, for example, as 5654137636 + 6581265625 = 75194^2 + 81125^2 .

It is a cyclic number.

It is not a de Polignac number, because 12235403261 - 2⁶ = 12235403197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235403231) 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, 23804030 + ... + 23804543.

It is an arithmetic number, because the mean of its divisors is an integer number (3070753023).

Almost surely, 2^12235403261 is an apocalyptic number.

It is an amenable number.

12235403261 is a deficient number, since it is larger than the sum of its proper divisors (47608831).

12235403261 is an equidigital number, since it uses as much as digits as its factorization.

12235403261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47608830.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 12235403261 its reverse (16230453221), we get a palindrome (28465856482).

The spelling of 12235403261 in words is "twelve billion, two hundred thirty-five million, four hundred three thousand, two hundred sixty-one".