11272161523 has 8 divisors (see below), whose sum is σ = 12884100192. Its totient is φ = 9660630336.

The previous prime is 11272161437. The next prime is 11272161533. The reversal of 11272161523 is 32516127211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11272161523 - 2²⁵ = 11238607091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11272161533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40090 + ... + 155407.

It is an arithmetic number, because the mean of its divisors is an integer number (1610512524).

Almost surely, 2^11272161523 is an apocalyptic number.

11272161523 is a deficient number, since it is larger than the sum of its proper divisors (1611938669).

11272161523 is an equidigital number, since it uses as much as digits as its factorization.

11272161523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203741.

The product of its digits is 5040, while the sum is 31.

Adding to 11272161523 its reverse (32516127211), we get a palindrome (43788288734).

The spelling of 11272161523 in words is "eleven billion, two hundred seventy-two million, one hundred sixty-one thousand, five hundred twenty-three".