20342355332 has 12 divisors (see below), whose sum is σ = 38337515916. Its totient is φ = 9388779360.

The previous prime is 20342355331. The next prime is 20342355343. The reversal of 20342355332 is 23355324302.

It can be written as a sum of positive squares in 2 ways, for example, as 2922051136 + 17420304196 = 54056^2 + 131986^2 .

It is a super-2 number, since 2×20342355332² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20342355331) 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, 195599519 + ... + 195599622.

It is an arithmetic number, because the mean of its divisors is an integer number (3194792993).

Almost surely, 2^20342355332 is an apocalyptic number.

It is an amenable number.

20342355332 is a deficient number, since it is larger than the sum of its proper divisors (17995160584).

20342355332 is a wasteful number, since it uses less digits than its factorization.

20342355332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391199158 (or 391199156 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 32.

Adding to 20342355332 its reverse (23355324302), we get a palindrome (43697679634).

The spelling of 20342355332 in words is "twenty billion, three hundred forty-two million, three hundred fifty-five thousand, three hundred thirty-two".