20342302243430 has 16 divisors (see below), whose sum is σ = 36616199500944. Its totient is φ = 8136908572320.

The previous prime is 20342302243409. The next prime is 20342302243447. The reversal of 20342302243430 is 3434220324302.

It is a happy number.

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, 8519660 + ... + 10642800.

It is an arithmetic number, because the mean of its divisors is an integer number (2288512468809).

Almost surely, 2^{20342302243430} is an apocalyptic number.

20342302243430 is a deficient number, since it is larger than the sum of its proper divisors (16273897257514).

20342302243430 is a wasteful number, since it uses less digits than its factorization.

20342302243430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081271.

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 20342302243430 its reverse (3434220324302), we get a palindrome (23776522567732).

The spelling of 20342302243430 in words is "twenty trillion, three hundred forty-two billion, three hundred two million, two hundred forty-three thousand, four hundred thirty".