30821322313 has 4 divisors (see below), whose sum is σ = 30890896848. Its totient is φ = 30751747780.

The previous prime is 30821322281. The next prime is 30821322347. The reversal of 30821322313 is 31322312803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30821322313 - 2⁵ = 30821322281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30821322013) 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, 34786603 + ... + 34787488.

It is an arithmetic number, because the mean of its divisors is an integer number (7722724212).

Almost surely, 2^30821322313 is an apocalyptic number.

It is an amenable number.

30821322313 is a deficient number, since it is larger than the sum of its proper divisors (69574535).

30821322313 is an equidigital number, since it uses as much as digits as its factorization.

30821322313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69574534.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 30821322313 in words is "thirty billion, eight hundred twenty-one million, three hundred twenty-two thousand, three hundred thirteen".