12111123010 has 32 divisors (see below), whose sum is σ = 25286175360. Its totient is φ = 4090407552.

The previous prime is 12111122993. The next prime is 12111123053. The reversal of 12111123010 is 1032111121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286475 + ... + 1295854.

It is an arithmetic number, because the mean of its divisors is an integer number (790192980).

Almost surely, 2^12111123010 is an apocalyptic number.

12111123010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111123010 is an abundant number, since it is smaller than the sum of its proper divisors (13175052350).

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

12111123010 is a wasteful number, since it uses less digits than its factorization.

12111123010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582410.

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

Adding to 12111123010 its reverse (1032111121), we get a palindrome (13143234131).

The spelling of 12111123010 in words is "twelve billion, one hundred eleven million, one hundred twenty-three thousand, ten".