11001000231 has 32 divisors (see below), whose sum is σ = 17685507840. Its totient is φ = 6718140000.

The previous prime is 11001000221. The next prime is 11001000253. The reversal of 11001000231 is 13200010011.

It is not a de Polignac number, because 11001000231 - 2⁷ = 11001000103 is a prime.

It is a super-2 number, since 2×11001000231² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001000221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73645 + ... + 165606.

It is an arithmetic number, because the mean of its divisors is an integer number (552672120).

Almost surely, 2^11001000231 is an apocalyptic number.

11001000231 is a deficient number, since it is larger than the sum of its proper divisors (6684507609).

11001000231 is a wasteful number, since it uses less digits than its factorization.

11001000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239404 (or 239398 counting only the distinct ones).

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

Adding to 11001000231 its reverse (13200010011), we get a palindrome (24201010242).

The spelling of 11001000231 in words is "eleven billion, one million, two hundred thirty-one", and thus it is an aban number.