20342221342 has 8 divisors (see below), whose sum is σ = 31338016776. Its totient is φ = 9896215752.

The previous prime is 20342221331. The next prime is 20342221349. The reversal of 20342221342 is 24312224302.

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 (20342221349) 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, 137447368 + ... + 137447515.

It is an arithmetic number, because the mean of its divisors is an integer number (3917252097).

Almost surely, 2^20342221342 is an apocalyptic number.

20342221342 is a deficient number, since it is larger than the sum of its proper divisors (10995795434).

20342221342 is a wasteful number, since it uses less digits than its factorization.

20342221342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274894922.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20342221342 its reverse (24312224302), we get a palindrome (44654445644).

The spelling of 20342221342 in words is "twenty billion, three hundred forty-two million, two hundred twenty-one thousand, three hundred forty-two".