12011121304 has 32 divisors (see below), whose sum is σ = 27717973920. Its totient is φ = 4751652096.

The previous prime is 12011121281. The next prime is 12011121307. The reversal of 12011121304 is 40312111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011121307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8248669 + ... + 8250124.

It is an arithmetic number, because the mean of its divisors is an integer number (866186685).

Almost surely, 2^12011121304 is an apocalyptic number.

12011121304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12011121304 is an abundant number, since it is smaller than the sum of its proper divisors (15706852616).

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

12011121304 is a wasteful number, since it uses less digits than its factorization.

12011121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16498819 (or 16498815 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12011121304 its reverse (40312111021), we get a palindrome (52323232325).

The spelling of 12011121304 in words is "twelve billion, eleven million, one hundred twenty-one thousand, three hundred four".