30211310993 has 2 divisors, whose sum is σ = 30211310994. Its totient is φ = 30211310992.

The previous prime is 30211310977. The next prime is 30211311041. The reversal of 30211310993 is 39901311203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30202268944 + 9042049 = 173788^2 + 3007^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211310993 - 2⁴ = 30211310977 is a prime.

It is not a weakly prime, because it can be changed into another prime (30211310933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105655496 + 15105655497.

It is an arithmetic number, because the mean of its divisors is an integer number (15105655497).

Almost surely, 2^30211310993 is an apocalyptic number.

It is an amenable number.

30211310993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211310993 is an equidigital number, since it uses as much as digits as its factorization.

30211310993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 32.

The spelling of 30211310993 in words is "thirty billion, two hundred eleven million, three hundred ten thousand, nine hundred ninety-three".