1323138712 has 16 divisors (see below), whose sum is σ = 2835297360. Its totient is φ = 567059424.

The previous prime is 1323138709. The next prime is 1323138727. The reversal of 1323138712 is 2178313231.

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 3 ways as a sum of consecutive naturals, for example, 11813683 + ... + 11813794.

It is an arithmetic number, because the mean of its divisors is an integer number (177206085).

Almost surely, 2^1323138712 is an apocalyptic number.

It is an amenable number.

1323138712 is an abundant number, since it is smaller than the sum of its proper divisors (1512158648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323138712 is a wasteful number, since it uses less digits than its factorization.

1323138712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23627490 (or 23627486 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 1323138712 is about 36374.9737044578. The cubic root of 1323138712 is about 1097.8300782280.

The spelling of 1323138712 in words is "one billion, three hundred twenty-three million, one hundred thirty-eight thousand, seven hundred twelve".