100111231 has 8 divisors (see below), whose sum is σ = 109408464. Its totient is φ = 90846720.

The previous prime is 100111229. The next prime is 100111237. The reversal of 100111231 is 132111001.

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 100111231 - 2¹ = 100111229 is a prime.

It is a super-2 number, since 2×100111231² = 20044517144670722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111237) 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, 1540 + ... + 14233.

It is an arithmetic number, because the mean of its divisors is an integer number (13676058).

Almost surely, 2^100111231 is an apocalyptic number.

100111231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100111231 is a deficient number, since it is larger than the sum of its proper divisors (9297233).

100111231 is a wasteful number, since it uses less digits than its factorization.

100111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16361.

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

The square root of 100111231 is about 10005.5600043176. The cubic root of 100111231 is about 464.3309157818.

Adding to 100111231 its reverse (132111001), we get a palindrome (232222232).

The spelling of 100111231 in words is "one hundred million, one hundred eleven thousand, two hundred thirty-one".