11123023001 has 4 divisors (see below), whose sum is σ = 11152843812. Its totient is φ = 11093202192.

The previous prime is 11123022971. The next prime is 11123023019. The reversal of 11123023001 is 10032032111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10032032111 = 37 ⋅271136003.

It can be written as a sum of positive squares in 2 ways, for example, as 8386163776 + 2736859225 = 91576^2 + 52315^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123023001 - 2²² = 11118828697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11123023061) 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, 14909846 + ... + 14910591.

It is an arithmetic number, because the mean of its divisors is an integer number (2788210953).

Almost surely, 2^11123023001 is an apocalyptic number.

It is an amenable number.

11123023001 is a deficient number, since it is larger than the sum of its proper divisors (29820811).

11123023001 is an equidigital number, since it uses as much as digits as its factorization.

11123023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29820810.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11123023001 its reverse (10032032111), we get a palindrome (21155055112).

The spelling of 11123023001 in words is "eleven billion, one hundred twenty-three million, twenty-three thousand, one".