20430123210342 has 96 divisors (see below), whose sum is σ = 44731381919328. Its totient is φ = 6738542834688.

The previous prime is 20430123210323. The next prime is 20430123210347. The reversal of 20430123210342 is 24301232103402.

20430123210342 is a `hidden beast` number, since 2 + 0 + 4 + 301 + 2 + 3 + 2 + 10 + 342 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430123210347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3757606848 + ... + 3757612284.

It is an arithmetic number, because the mean of its divisors is an integer number (465951894993).

Almost surely, 2^{20430123210342} is an apocalyptic number.

20430123210342 is an abundant number, since it is smaller than the sum of its proper divisors (24301258708986).

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

20430123210342 is a wasteful number, since it uses less digits than its factorization.

20430123210342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294 (or 8291 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20430123210342 its reverse (24301232103402), we get a palindrome (44731355313744).

The spelling of 20430123210342 in words is "twenty trillion, four hundred thirty billion, one hundred twenty-three million, two hundred ten thousand, three hundred forty-two".