30311013103 has 4 divisors (see below), whose sum is σ = 34641157840. Its totient is φ = 25980868368.

The previous prime is 30311013079. The next prime is 30311013119. The reversal of 30311013103 is 30131011303.

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

It is not a de Polignac number, because 30311013103 - 2¹⁷ = 30310882031 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 (30311013163) 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, 2165072358 + ... + 2165072371.

It is an arithmetic number, because the mean of its divisors is an integer number (8660289460).

Almost surely, 2^30311013103 is an apocalyptic number.

30311013103 is a deficient number, since it is larger than the sum of its proper divisors (4330144737).

30311013103 is an equidigital number, since it uses as much as digits as its factorization.

30311013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330144736.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 30311013103 its reverse (30131011303), we get a palindrome (60442024406).

The spelling of 30311013103 in words is "thirty billion, three hundred eleven million, thirteen thousand, one hundred three".