231081112 has 16 divisors (see below), whose sum is σ = 433797840. Its totient is φ = 115401696.

The previous prime is 231081107. The next prime is 231081121. The reversal of 231081112 is 211180132.

It is a self number, because there is not a number n which added to its sum of digits gives 231081112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10108 + ... + 23755.

It is an arithmetic number, because the mean of its divisors is an integer number (27112365).

Almost surely, 2^231081112 is an apocalyptic number.

It is an amenable number.

231081112 is a deficient number, since it is larger than the sum of its proper divisors (202716728).

231081112 is a wasteful number, since it uses less digits than its factorization.

231081112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34722 (or 34718 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 231081112 is about 15201.3523082652. The cubic root of 231081112 is about 613.6510517809.

The spelling of 231081112 in words is "two hundred thirty-one million, eighty-one thousand, one hundred twelve".