12021401342 has 8 divisors (see below), whose sum is σ = 18131727432. Its totient is φ = 5977492200.

The previous prime is 12021401341. The next prime is 12021401383. The reversal of 12021401342 is 24310412021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021401341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16603784 + ... + 16604507.

It is an arithmetic number, because the mean of its divisors is an integer number (2266465929).

Almost surely, 2^12021401342 is an apocalyptic number.

12021401342 is a deficient number, since it is larger than the sum of its proper divisors (6110326090).

12021401342 is a wasteful number, since it uses less digits than its factorization.

12021401342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33208474.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12021401342 its reverse (24310412021), we get a palindrome (36331813363).

The spelling of 12021401342 in words is "twelve billion, twenty-one million, four hundred one thousand, three hundred forty-two".