1231719634268 has 48 divisors (see below), whose sum is σ = 2352468249600. Its totient is φ = 562137719040.

The previous prime is 1231719634217. The next prime is 1231719634297. The reversal of 1231719634268 is 8624369171321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616733 + ... + 1686356.

It is an arithmetic number, because the mean of its divisors is an integer number (49009755200).

Almost surely, 2^{1231719634268} is an apocalyptic number.

It is an amenable number.

1231719634268 is a deficient number, since it is larger than the sum of its proper divisors (1120748615332).

1231719634268 is a wasteful number, since it uses less digits than its factorization.

1231719634268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303370 (or 2303368 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The spelling of 1231719634268 in words is "one trillion, two hundred thirty-one billion, seven hundred nineteen million, six hundred thirty-four thousand, two hundred sixty-eight".