30111013 has 6 divisors (see below), whose sum is σ = 31114662. Its totient is φ = 29138760.

The previous prime is 30110947. The next prime is 30111017. The reversal of 30111013 is 31011103.

It can be written as a sum of positive squares in only one way, i.e., 30107169 + 3844 = 5487^2 + 62^2 .

It is not a de Polignac number, because 30111013 - 2¹⁷ = 29979941 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 (30111017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14706 + ... + 16627.

It is an arithmetic number, because the mean of its divisors is an integer number (5185777).

Almost surely, 2^30111013 is an apocalyptic number.

It is an amenable number.

30111013 is a deficient number, since it is larger than the sum of its proper divisors (1003649).

30111013 is an equidigital number, since it uses as much as digits as its factorization.

30111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31395 (or 31364 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 30111013 is about 5487.3502713058. The cubic root of 30111013 is about 311.1060490342.

Adding to 30111013 its reverse (31011103), we get a palindrome (61122116).

The spelling of 30111013 in words is "thirty million, one hundred eleven thousand, thirteen".