1231076668 has 12 divisors (see below), whose sum is σ = 2184728112. Its totient is φ = 606868640.

The previous prime is 1231076663. The next prime is 1231076689. The reversal of 1231076668 is 8666701321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231076668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231076663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2167105 + ... + 2167672.

It is an arithmetic number, because the mean of its divisors is an integer number (182060676).

Almost surely, 2^1231076668 is an apocalyptic number.

It is an amenable number.

1231076668 is a deficient number, since it is larger than the sum of its proper divisors (953651444).

1231076668 is a wasteful number, since it uses less digits than its factorization.

1231076668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334852 (or 4334850 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1231076668 is about 35086.7021533800. The cubic root of 1231076668 is about 1071.7538035930.

Adding to 1231076668 its reverse (8666701321), we get a palindrome (9897777989).

The spelling of 1231076668 in words is "one billion, two hundred thirty-one million, seventy-six thousand, six hundred sixty-eight".