12104311440 has 160 divisors (see below), whose sum is σ = 42787011456. Its totient is φ = 2804244480.

The previous prime is 12104311433. The next prime is 12104311441. The reversal of 12104311440 is 4411340121.

It is not an unprimeable number, because it can be changed into a prime (12104311441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61066 + ... + 167145.

Almost surely, 2^12104311440 is an apocalyptic number.

12104311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12104311440 is an abundant number, since it is smaller than the sum of its proper divisors (30682700016).

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

12104311440 is a wasteful number, since it uses less digits than its factorization.

12104311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228257 (or 228251 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12104311440 its reverse (4411340121), we get a palindrome (16515651561).

The spelling of 12104311440 in words is "twelve billion, one hundred four million, three hundred eleven thousand, four hundred forty".