12142033421 has 8 divisors (see below), whose sum is σ = 13881141120. Its totient is φ = 10404058608.

The previous prime is 12142033373. The next prime is 12142033427. The reversal of 12142033421 is 12433024121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12142033421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142033427) 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, 260126 + ... + 303231.

It is an arithmetic number, because the mean of its divisors is an integer number (1735142640).

Almost surely, 2^12142033421 is an apocalyptic number.

It is an amenable number.

12142033421 is a deficient number, since it is larger than the sum of its proper divisors (1739107699).

12142033421 is an equidigital number, since it uses as much as digits as its factorization.

12142033421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566443.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12142033421 its reverse (12433024121), we get a palindrome (24575057542).

The spelling of 12142033421 in words is "twelve billion, one hundred forty-two million, thirty-three thousand, four hundred twenty-one".