20423201334 has 32 divisors (see below), whose sum is σ = 41311374720. Its totient is φ = 6730646400.

The previous prime is 20423201321. The next prime is 20423201341. The reversal of 20423201334 is 43310232402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150189 + ... + 251799.

It is an arithmetic number, because the mean of its divisors is an integer number (1290980460).

Almost surely, 2^20423201334 is an apocalyptic number.

20423201334 is an abundant number, since it is smaller than the sum of its proper divisors (20888173386).

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

20423201334 is a wasteful number, since it uses less digits than its factorization.

20423201334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101996.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20423201334 its reverse (43310232402), we get a palindrome (63733433736).

The spelling of 20423201334 in words is "twenty billion, four hundred twenty-three million, two hundred one thousand, three hundred thirty-four".