11203523153 has 4 divisors (see below), whose sum is σ = 11206288740. Its totient is φ = 11200757568.

The previous prime is 11203523131. The next prime is 11203523167. The reversal of 11203523153 is 35132530211.

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 9233672464 + 1969850689 = 96092^2 + 44383^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203523153 - 2¹⁰ = 11203522129 is a prime.

It is a super-2 number, since 2×11203523153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11203529153) 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, 1376708 + ... + 1384821.

It is an arithmetic number, because the mean of its divisors is an integer number (2801572185).

Almost surely, 2^11203523153 is an apocalyptic number.

It is an amenable number.

11203523153 is a deficient number, since it is larger than the sum of its proper divisors (2765587).

11203523153 is an equidigital number, since it uses as much as digits as its factorization.

11203523153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765586.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 11203523153 in words is "eleven billion, two hundred three million, five hundred twenty-three thousand, one hundred fifty-three".