20320332342 has 32 divisors (see below), whose sum is σ = 41728266720. Its totient is φ = 6592942080.

The previous prime is 20320332293. The next prime is 20320332343. The reversal of 20320332342 is 24323302302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320332343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11134 + ... + 201902.

It is an arithmetic number, because the mean of its divisors is an integer number (1304008335).

Almost surely, 2^20320332342 is an apocalyptic number.

20320332342 is an abundant number, since it is smaller than the sum of its proper divisors (21407934378).

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

20320332342 is a wasteful number, since it uses less digits than its factorization.

20320332342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191248.

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 20320332342 its reverse (24323302302), we get a palindrome (44643634644).

The spelling of 20320332342 in words is "twenty billion, three hundred twenty million, three hundred thirty-two thousand, three hundred forty-two".