21342033142 has 8 divisors (see below), whose sum is σ = 33045728832. Its totient is φ = 10326790200.

The previous prime is 21342033137. The next prime is 21342033143. The reversal of 21342033142 is 24133024312.

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 (21342033143) 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, 172113109 + ... + 172113232.

It is an arithmetic number, because the mean of its divisors is an integer number (4130716104).

Almost surely, 2^21342033142 is an apocalyptic number.

21342033142 is a deficient number, since it is larger than the sum of its proper divisors (11703695690).

21342033142 is a wasteful number, since it uses less digits than its factorization.

21342033142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344226374.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21342033142 its reverse (24133024312), we get a palindrome (45475057454).

The spelling of 21342033142 in words is "twenty-one billion, three hundred forty-two million, thirty-three thousand, one hundred forty-two".