1321232994 has 24 divisors (see below), whose sum is σ = 2864554992. Its totient is φ = 440121240.

The previous prime is 1321232981. The next prime is 1321233019. The reversal of 1321232994 is 4992321231.

1321232994 is a `hidden beast` number, since 1 + 321 + 2 + 329 + 9 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4917 + ... + 51639.

It is an arithmetic number, because the mean of its divisors is an integer number (119356458).

Almost surely, 2^1321232994 is an apocalyptic number.

1321232994 is an abundant number, since it is smaller than the sum of its proper divisors (1543321998).

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

1321232994 is a wasteful number, since it uses less digits than its factorization.

1321232994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48302 (or 48299 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1321232994 is about 36348.7688099611. The cubic root of 1321232994 is about 1097.3027563958.

The spelling of 1321232994 in words is "one billion, three hundred twenty-one million, two hundred thirty-two thousand, nine hundred ninety-four".