1321108079 has 8 divisors (see below), whose sum is σ = 1382022000. Its totient is φ = 1261218112.

The previous prime is 1321108043. The next prime is 1321108081. The reversal of 1321108079 is 9708011231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321108079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321108039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253349 + ... + 258510.

It is an arithmetic number, because the mean of its divisors is an integer number (172752750).

Almost surely, 2^1321108079 is an apocalyptic number.

1321108079 is a deficient number, since it is larger than the sum of its proper divisors (60913921).

1321108079 is an equidigital number, since it uses as much as digits as its factorization.

1321108079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511977.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1321108079 is about 36347.0504855621. The cubic root of 1321108079 is about 1097.2681740790.

The spelling of 1321108079 in words is "one billion, three hundred twenty-one million, one hundred eight thousand, seventy-nine".