1321919093 has 8 divisors (see below), whose sum is σ = 1491821280. Its totient is φ = 1160304880.

The previous prime is 1321919083. The next prime is 1321919101. The reversal of 1321919093 is 3909191231.

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 1321919093 - 2⁴ = 1321919077 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 (1321919023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071655 + ... + 2072292.

It is an arithmetic number, because the mean of its divisors is an integer number (186477660).

Almost surely, 2^1321919093 is an apocalyptic number.

It is an amenable number.

1321919093 is a deficient number, since it is larger than the sum of its proper divisors (169902187).

1321919093 is a wasteful number, since it uses less digits than its factorization.

1321919093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143987.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 1321919093 is about 36358.2053049927. The cubic root of 1321919093 is about 1097.4926618473.

The spelling of 1321919093 in words is "one billion, three hundred twenty-one million, nine hundred nineteen thousand, ninety-three".