30993793319 has 4 divisors (see below), whose sum is σ = 30998248944. Its totient is φ = 30989337696.

The previous prime is 30993793307. The next prime is 30993793343. The reversal of 30993793319 is 91339739903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30993793319 - 2⁸ = 30993793063 is a prime.

It is a super-2 number, since 2×30993793319² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30993790319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217362 + ... + 2231295.

It is an arithmetic number, because the mean of its divisors is an integer number (7749562236).

Almost surely, 2^30993793319 is an apocalyptic number.

30993793319 is a deficient number, since it is larger than the sum of its proper divisors (4455625).

30993793319 is an equidigital number, since it uses as much as digits as its factorization.

30993793319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455624.

The product of its (nonzero) digits is 3720087, while the sum is 56.

The spelling of 30993793319 in words is "thirty billion, nine hundred ninety-three million, seven hundred ninety-three thousand, three hundred nineteen".