231012105 has 8 divisors (see below), whose sum is σ = 369619392. Its totient is φ = 123206448.

The previous prime is 231012101. The next prime is 231012109. The reversal of 231012105 is 501210132.

It is an interprime number because it is at equal distance from previous prime (231012101) and next prime (231012109).

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

It is not a de Polignac number, because 231012105 - 2² = 231012101 is a prime.

It is a super-4 number, since 4×231012105⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 15400807 = 231012105 / (2 + 3 + 1 + 0 + 1 + 2 + 1 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (231012101) 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, 7700389 + ... + 7700418.

It is an arithmetic number, because the mean of its divisors is an integer number (46202424).

Almost surely, 2^231012105 is an apocalyptic number.

It is an amenable number.

231012105 is a deficient number, since it is larger than the sum of its proper divisors (138607287).

231012105 is a wasteful number, since it uses less digits than its factorization.

231012105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15400815.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 231012105 is about 15199.0823736172. The cubic root of 231012105 is about 613.5899614944.

Adding to 231012105 its reverse (501210132), we get a palindrome (732222237).

The spelling of 231012105 in words is "two hundred thirty-one million, twelve thousand, one hundred five".