11023111001 has 12 divisors (see below), whose sum is σ = 12850887348. Its totient is φ = 9427686912.

The previous prime is 11023110997. The next prime is 11023111063. The reversal of 11023111001 is 10011132011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4942230601 + 6080880400 = 70301^2 + 77980^2 .

It is not a de Polignac number, because 11023111001 - 2² = 11023110997 is a prime.

It is a super-2 number, since 2×11023111001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11023111081) 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, 223736 + ... + 268521.

It is an arithmetic number, because the mean of its divisors is an integer number (1070907279).

Almost surely, 2^11023111001 is an apocalyptic number.

It is an amenable number.

11023111001 is a deficient number, since it is larger than the sum of its proper divisors (1827776347).

11023111001 is an equidigital number, since it uses as much as digits as its factorization.

11023111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492728 (or 492721 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11023111001 its reverse (10011132011), we get a palindrome (21034243012).

The spelling of 11023111001 in words is "eleven billion, twenty-three million, one hundred eleven thousand, one".