20430310242342 has 192 divisors, whose sum is σ = 56942717091840. Its totient is φ = 4740363388800.

The previous prime is 20430310242319. The next prime is 20430310242343. The reversal of 20430310242342 is 24324201303402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430310242343) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1799992 + ... + 6640827.

It is an arithmetic number, because the mean of its divisors is an integer number (296576651520).

Almost surely, 2^{20430310242342} is an apocalyptic number.

20430310242342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20430310242342 is an abundant number, since it is smaller than the sum of its proper divisors (36512406849498).

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

20430310242342 is a wasteful number, since it uses less digits than its factorization.

20430310242342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8440899 (or 8440886 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20430310242342 its reverse (24324201303402), we get a palindrome (44754511545744).

The spelling of 20430310242342 in words is "twenty trillion, four hundred thirty billion, three hundred ten million, two hundred forty-two thousand, three hundred forty-two".