12111020203030 has 32 divisors (see below), whose sum is σ = 24929044413696. Its totient is φ = 4149858832224.

The previous prime is 12111020202973. The next prime is 12111020203033. The reversal of 12111020203030 is 3030202011121.

It is a junction number, because it is equal to n+sod(n) for n = 12111020202995 and 12111020203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111020203033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51777304 + ... + 52010683.

It is an arithmetic number, because the mean of its divisors is an integer number (779032637928).

Almost surely, 2^{12111020203030} is an apocalyptic number.

12111020203030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111020203030 is an abundant number, since it is smaller than the sum of its proper divisors (12818024210666).

12111020203030 is a wasteful number, since it uses less digits than its factorization.

12111020203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103789668.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12111020203030 its reverse (3030202011121), we get a palindrome (15141222214151).

The spelling of 12111020203030 in words is "twelve trillion, one hundred eleven billion, twenty million, two hundred three thousand, thirty".