11263161457 has 4 divisors (see below), whose sum is σ = 11263503600. Its totient is φ = 11262819316.

The previous prime is 11263161443. The next prime is 11263161463. The reversal of 11263161457 is 75416136211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75416136211 = 13 ⋅5801241247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11263161457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11263161407) 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, 115723 + ... + 189520.

It is an arithmetic number, because the mean of its divisors is an integer number (2815875900).

Almost surely, 2^11263161457 is an apocalyptic number.

It is an amenable number.

11263161457 is a deficient number, since it is larger than the sum of its proper divisors (342143).

11263161457 is an equidigital number, since it uses as much as digits as its factorization.

11263161457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342142.

The product of its digits is 30240, while the sum is 37.

Adding to 11263161457 its reverse (75416136211), we get a palindrome (86679297668).

The spelling of 11263161457 in words is "eleven billion, two hundred sixty-three million, one hundred sixty-one thousand, four hundred fifty-seven".