12143402412 has 24 divisors (see below), whose sum is σ = 28416271296. Its totient is φ = 4036134288.

The previous prime is 12143402357. The next prime is 12143402419. The reversal of 12143402412 is 21420434121.

It is not an unprimeable number, because it can be changed into a prime (12143402419) 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, 1453978 + ... + 1462305.

It is an arithmetic number, because the mean of its divisors is an integer number (1184011304).

Almost surely, 2^12143402412 is an apocalyptic number.

12143402412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12143402412 is an abundant number, since it is smaller than the sum of its proper divisors (16272868884).

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

12143402412 is a wasteful number, since it uses less digits than its factorization.

12143402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916637 (or 2916635 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12143402412 its reverse (21420434121), we get a palindrome (33563836533).

The spelling of 12143402412 in words is "twelve billion, one hundred forty-three million, four hundred two thousand, four hundred twelve".