1331680823 has 8 divisors (see below), whose sum is σ = 1461657216. Its totient is φ = 1203190200.

The previous prime is 1331680817. The next prime is 1331680843. The reversal of 1331680823 is 3280861331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331680823 - 2²² = 1327486519 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 (1331680843) 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, 369563 + ... + 373148.

It is an arithmetic number, because the mean of its divisors is an integer number (182707152).

Almost surely, 2^1331680823 is an apocalyptic number.

1331680823 is a deficient number, since it is larger than the sum of its proper divisors (129976393).

1331680823 is a wasteful number, since it uses less digits than its factorization.

1331680823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742885.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1331680823 is about 36492.2022218446. The cubic root of 1331680823 is about 1100.1875225757.

The spelling of 1331680823 in words is "one billion, three hundred thirty-one million, six hundred eighty thousand, eight hundred twenty-three".