11501432245 has 4 divisors (see below), whose sum is σ = 13801718700. Its totient is φ = 9201145792.

The previous prime is 11501432227. The next prime is 11501432249. The reversal of 11501432245 is 54223410511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5486809329 + 6014622916 = 74073^2 + 77554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11501432245 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11501432249) 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, 1150143220 + ... + 1150143229.

It is an arithmetic number, because the mean of its divisors is an integer number (3450429675).

Almost surely, 2^11501432245 is an apocalyptic number.

It is an amenable number.

11501432245 is a deficient number, since it is larger than the sum of its proper divisors (2300286455).

11501432245 is an equidigital number, since it uses as much as digits as its factorization.

11501432245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300286454.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 11501432245 its reverse (54223410511), we get a palindrome (65724842756).

The spelling of 11501432245 in words is "eleven billion, five hundred one million, four hundred thirty-two thousand, two hundred forty-five".