11523022003 has 4 divisors (see below), whose sum is σ = 11525829088. Its totient is φ = 11520214920.

The previous prime is 11523021953. The next prime is 11523022031. The reversal of 11523022003 is 30022032511.

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

It is a cyclic number.

It is not a de Polignac number, because 11523022003 - 2¹⁷ = 11522890931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523022703) 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, 1397376 + ... + 1405597.

It is an arithmetic number, because the mean of its divisors is an integer number (2881457272).

Almost surely, 2^11523022003 is an apocalyptic number.

11523022003 is a deficient number, since it is larger than the sum of its proper divisors (2807085).

11523022003 is an equidigital number, since it uses as much as digits as its factorization.

11523022003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807084.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 11523022003 its reverse (30022032511), we get a palindrome (41545054514).

The spelling of 11523022003 in words is "eleven billion, five hundred twenty-three million, twenty-two thousand, three".