12111111102030 has 32 divisors (see below), whose sum is σ = 29068525897344. Its totient is φ = 3229423043616.

The previous prime is 12111111102019. The next prime is 12111111102043. The reversal of 12111111102030 is 3020111111121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12434364 + ... + 13372943.

It is an arithmetic number, because the mean of its divisors is an integer number (908391434292).

Almost surely, 2^{12111111102030} is an apocalyptic number.

12111111102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111111102030 is an abundant number, since it is smaller than the sum of its proper divisors (16957414795314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111111102030 is a wasteful number, since it uses less digits than its factorization.

12111111102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25822960.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 12111111102030 its reverse (3020111111121), we get a palindrome (15131222213151).

Subtracting from 12111111102030 its reverse (3020111111121), we obtain a palindrome (9090999990909).

The spelling of 12111111102030 in words is "twelve trillion, one hundred eleven billion, one hundred eleven million, one hundred two thousand, thirty".