11271623453 has 4 divisors (see below), whose sum is σ = 11271950748. Its totient is φ = 11271296160.

The previous prime is 11271623443. The next prime is 11271623477. The reversal of 11271623453 is 35432617211.

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 6541897924 + 4729725529 = 80882^2 + 68773^2 .

It is a cyclic number.

It is not a de Polignac number, because 11271623453 - 2²⁴ = 11254846237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11271623423) 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, 104978 + ... + 183203.

It is an arithmetic number, because the mean of its divisors is an integer number (2817987687).

Almost surely, 2^11271623453 is an apocalyptic number.

It is an amenable number.

11271623453 is a deficient number, since it is larger than the sum of its proper divisors (327295).

11271623453 is an equidigital number, since it uses as much as digits as its factorization.

11271623453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327294.

The product of its digits is 30240, while the sum is 35.

The spelling of 11271623453 in words is "eleven billion, two hundred seventy-one million, six hundred twenty-three thousand, four hundred fifty-three".