11001020023 has 4 divisors (see below), whose sum is σ = 12572594320. Its totient is φ = 9429445728.

The previous prime is 11001020021. The next prime is 11001020027. The reversal of 11001020023 is 32002010011.

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 11001020023 - 2¹ = 11001020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001019991 and 11001020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001020021) 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, 785787138 + ... + 785787151.

It is an arithmetic number, because the mean of its divisors is an integer number (3143148580).

Almost surely, 2^11001020023 is an apocalyptic number.

11001020023 is a deficient number, since it is larger than the sum of its proper divisors (1571574297).

11001020023 is an equidigital number, since it uses as much as digits as its factorization.

11001020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571574296.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11001020023 its reverse (32002010011), we get a palindrome (43003030034).

The spelling of 11001020023 in words is "eleven billion, one million, twenty thousand, twenty-three".