30211320103 has 4 divisors (see below), whose sum is σ = 31185878848. Its totient is φ = 29236761360.

The previous prime is 30211320091. The next prime is 30211320199. The reversal of 30211320103 is 30102311203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30211320103 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 (30211321103) 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, 487279326 + ... + 487279387.

It is an arithmetic number, because the mean of its divisors is an integer number (7796469712).

Almost surely, 2^30211320103 is an apocalyptic number.

30211320103 is a deficient number, since it is larger than the sum of its proper divisors (974558745).

30211320103 is an equidigital number, since it uses as much as digits as its factorization.

30211320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974558744.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30211320103 its reverse (30102311203), we get a palindrome (60313631306).

The spelling of 30211320103 in words is "thirty billion, two hundred eleven million, three hundred twenty thousand, one hundred three".