30111211102 has 64 divisors (see below), whose sum is σ = 53294008320. Its totient is φ = 12492864000.

The previous prime is 30111211079. The next prime is 30111211157. The reversal of 30111211102 is 20111211103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36675852 + ... + 36676672.

It is an arithmetic number, because the mean of its divisors is an integer number (832718880).

Almost surely, 2^30111211102 is an apocalyptic number.

30111211102 is a deficient number, since it is larger than the sum of its proper divisors (23182797218).

30111211102 is a wasteful number, since it uses less digits than its factorization.

30111211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 30111211102 its reverse (20111211103), we get a palindrome (50222422205).

Subtracting from 30111211102 its reverse (20111211103), we obtain a palindrome (9999999999).

The spelling of 30111211102 in words is "thirty billion, one hundred eleven million, two hundred eleven thousand, one hundred two".