30111203101 has 12 divisors (see below), whose sum is σ = 35073389340. Its totient is φ = 25775655360.

The previous prime is 30111203099. The next prime is 30111203207. The reversal of 30111203101 is 10130211103.

It can be written as a sum of positive squares in 2 ways, for example, as 895505625 + 29215697476 = 29925^2 + 170926^2 .

It is not a de Polignac number, because 30111203101 - 2¹ = 30111203099 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 (30111203501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366466 + ... + 441043.

It is an arithmetic number, because the mean of its divisors is an integer number (2922782445).

Almost surely, 2^30111203101 is an apocalyptic number.

It is an amenable number.

30111203101 is a deficient number, since it is larger than the sum of its proper divisors (4962186239).

30111203101 is an equidigital number, since it uses as much as digits as its factorization.

30111203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808284 (or 808277 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30111203101 its reverse (10130211103), we get a palindrome (40241414204).

The spelling of 30111203101 in words is "thirty billion, one hundred eleven million, two hundred three thousand, one hundred one".