20420102232430 has 16 divisors (see below), whose sum is σ = 36946630571184. Its totient is φ = 8125719436800.

The previous prime is 20420102232419. The next prime is 20420102232451. The reversal of 20420102232430 is 3423220102402.

It is a junction number, because it is equal to n+sod(n) for n = 20420102232395 and 20420102232404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290179996 + ... + 5290183855.

It is an arithmetic number, because the mean of its divisors is an integer number (2309164410699).

Almost surely, 2^{20420102232430} is an apocalyptic number.

20420102232430 is a deficient number, since it is larger than the sum of its proper divisors (16526528338754).

20420102232430 is a wasteful number, since it uses less digits than its factorization.

20420102232430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580364051.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20420102232430 its reverse (3423220102402), we get a palindrome (23843322334832).

The spelling of 20420102232430 in words is "twenty trillion, four hundred twenty billion, one hundred two million, two hundred thirty-two thousand, four hundred thirty".