11001013231 has 8 divisors (see below), whose sum is σ = 12122762960. Its totient is φ = 9918623232.

The previous prime is 11001013213. The next prime is 11001013249. The reversal of 11001013231 is 13231010011.

It is an interprime number because it is at equal distance from previous prime (11001013213) and next prime (11001013249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11001013231 - 2⁷ = 11001013103 is a prime.

It is a super-2 number, since 2×11001013231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001010231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9839346 + ... + 9840463.

It is an arithmetic number, because the mean of its divisors is an integer number (1515345370).

Almost surely, 2^11001013231 is an apocalyptic number.

11001013231 is a deficient number, since it is larger than the sum of its proper divisors (1121749729).

11001013231 is a wasteful number, since it uses less digits than its factorization.

11001013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19679865.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11001013231 its reverse (13231010011), we get a palindrome (24232023242).

The spelling of 11001013231 in words is "eleven billion, one million, thirteen thousand, two hundred thirty-one".