30111220103 has 2 divisors, whose sum is σ = 30111220104. Its totient is φ = 30111220102.

The previous prime is 30111220081. The next prime is 30111220147. The reversal of 30111220103 is 30102211103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30111220103 - 2⁶ = 30111220039 is a prime.

It is a super-2 number, since 2×30111220103² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30111220303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055610051 + 15055610052.

It is an arithmetic number, because the mean of its divisors is an integer number (15055610052).

Almost surely, 2^30111220103 is an apocalyptic number.

30111220103 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111220103 is an equidigital number, since it uses as much as digits as its factorization.

30111220103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30111220103 its reverse (30102211103), we get a palindrome (60213431206).

The spelling of 30111220103 in words is "thirty billion, one hundred eleven million, two hundred twenty thousand, one hundred three".