1993321211 has 8 divisors (see below), whose sum is σ = 2279069184. Its totient is φ = 1707820200.

The previous prime is 1993321189. The next prime is 1993321229. The reversal of 1993321211 is 1121233991.

It is a happy number.

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 1993321211 - 2⁶ = 1993321147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1993321411) 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, 44105 + ... + 77018.

It is an arithmetic number, because the mean of its divisors is an integer number (284883648).

Almost surely, 2^1993321211 is an apocalyptic number.

1993321211 is a deficient number, since it is larger than the sum of its proper divisors (285747973).

1993321211 is a wasteful number, since it uses less digits than its factorization.

1993321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123481.

The product of its digits is 2916, while the sum is 32.

The square root of 1993321211 is about 44646.6259755427. The cubic root of 1993321211 is about 1258.5170280641.

The spelling of 1993321211 in words is "one billion, nine hundred ninety-three million, three hundred twenty-one thousand, two hundred eleven".