11023001001 has 12 divisors (see below), whose sum is σ = 16159756912. Its totient is φ = 7238985336.

The previous prime is 11023000973. The next prime is 11023001027. The reversal of 11023001001 is 10010032011.

It is not a de Polignac number, because 11023001001 - 2⁷ = 11023000873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11023001071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9139531 + ... + 9140736.

Almost surely, 2^11023001001 is an apocalyptic number.

It is an amenable number.

11023001001 is a deficient number, since it is larger than the sum of its proper divisors (5136755911).

11023001001 is a wasteful number, since it uses less digits than its factorization.

11023001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280340 (or 18280337 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 11023001001 its reverse (10010032011), we get a palindrome (21033033012).

The spelling of 11023001001 in words is "eleven billion, twenty-three million, one thousand, one".