231133108 has 6 divisors (see below), whose sum is σ = 404482946. Its totient is φ = 115566552.

The previous prime is 231133093. The next prime is 231133109. The reversal of 231133108 is 801331132.

It can be written as a sum of positive squares in only one way, i.e., 227044624 + 4088484 = 15068^2 + 2022^2 .

It is a super-2 number, since 2×231133108² = 106845027227479328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231133109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28891635 + ... + 28891642.

Almost surely, 2^231133108 is an apocalyptic number.

It is an amenable number.

231133108 is a deficient number, since it is larger than the sum of its proper divisors (173349838).

231133108 is a wasteful number, since it uses less digits than its factorization.

231133108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57783281 (or 57783279 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 231133108 is about 15203.0624546504. The cubic root of 231133108 is about 613.6970745922.

The spelling of 231133108 in words is "two hundred thirty-one million, one hundred thirty-three thousand, one hundred eight".