20345032214020 has 48 divisors (see below), whose sum is σ = 43862987222208. Its totient is φ = 7923515300480.

The previous prime is 20345032214011. The next prime is 20345032214027. The reversal of 20345032214020 is 2041223054302.

It is a self number, because there is not a number n which added to its sum of digits gives 20345032214020.

It is not an unprimeable number, because it can be changed into a prime (20345032214027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73118494 + ... + 73396213.

It is an arithmetic number, because the mean of its divisors is an integer number (913812233796).

Almost surely, 2^{20345032214020} is an apocalyptic number.

20345032214020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20345032214020 is an abundant number, since it is smaller than the sum of its proper divisors (23517955008188).

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

20345032214020 is a wasteful number, since it uses less digits than its factorization.

20345032214020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146514900 (or 146514898 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20345032214020 its reverse (2041223054302), we get a palindrome (22386255268322).

The spelling of 20345032214020 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, two hundred fourteen thousand, twenty".