1012305231 has 24 divisors (see below), whose sum is σ = 1672012160. Its totient is φ = 578146896.

The previous prime is 1012305227. The next prime is 1012305277. The reversal of 1012305231 is 1325032101.

It is not a de Polignac number, because 1012305231 - 2² = 1012305227 is a prime.

It is a super-2 number, since 2×1012305231² = 2049523761419926722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012305631) 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 in 23 ways as a sum of consecutive naturals, for example, 164496 + ... + 170538.

Almost surely, 2^1012305231 is an apocalyptic number.

1012305231 is a deficient number, since it is larger than the sum of its proper divisors (659706929).

1012305231 is a wasteful number, since it uses less digits than its factorization.

1012305231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8715 (or 8712 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1012305231 is about 31816.7445066273. The cubic root of 1012305231 is about 1004.0850334454.

Adding to 1012305231 its reverse (1325032101), we get a palindrome (2337337332).

The spelling of 1012305231 in words is "one billion, twelve million, three hundred five thousand, two hundred thirty-one".