20345203300242 has 16 divisors (see below), whose sum is σ = 41790147319872. Its totient is φ = 6598444313520.

The previous prime is 20345203300153. The next prime is 20345203300273. The reversal of 20345203300242 is 24200330254302.

It is a happy 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, 45822529734 + ... + 45822530177.

It is an arithmetic number, because the mean of its divisors is an integer number (2611884207492).

Almost surely, 2^{20345203300242} is an apocalyptic number.

20345203300242 is an abundant number, since it is smaller than the sum of its proper divisors (21444944019630).

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

20345203300242 is a wasteful number, since it uses less digits than its factorization.

20345203300242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91645059953.

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 20345203300242 its reverse (24200330254302), we get a palindrome (44545533554544).

The spelling of 20345203300242 in words is "twenty trillion, three hundred forty-five billion, two hundred three million, three hundred thousand, two hundred forty-two".