1000111000231 has 4 divisors (see below), whose sum is σ = 1142984000272. Its totient is φ = 857238000192.

The previous prime is 1000111000219. The next prime is 1000111000243. The reversal of 1000111000231 is 1320001110001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1000111000219) and next prime (1000111000243).

It is not a de Polignac number, because 1000111000231 - 2⁵ = 1000111000199 is a prime.

It is a super-2 number, since 2×1000111000231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111000531) 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, 71436500010 + ... + 71436500023.

It is an arithmetic number, because the mean of its divisors is an integer number (285746000068).

Almost surely, 2^{1000111000231} is an apocalyptic number.

1000111000231 is a deficient number, since it is larger than the sum of its proper divisors (142873000041).

1000111000231 is an equidigital number, since it uses as much as digits as its factorization.

1000111000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142873000040.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1000111000231 its reverse (1320001110001), we get a palindrome (2320112110232).

The spelling of 1000111000231 in words is "one trillion, one hundred eleven million, two hundred thirty-one", and thus it is an aban number.