20420023300030 has 32 divisors (see below), whose sum is σ = 36780158954880. Its totient is φ = 8162651659680.

The previous prime is 20420023299989. The next prime is 20420023300049. The reversal of 20420023300030 is 3000332002402.

It is a junction number, because it is equal to n+sod(n) for n = 20420023299980 and 20420023300007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100496197 + ... + 100699183.

It is an arithmetic number, because the mean of its divisors is an integer number (1149379967340).

Almost surely, 2^{20420023300030} is an apocalyptic number.

20420023300030 is a deficient number, since it is larger than the sum of its proper divisors (16360135654850).

20420023300030 is a wasteful number, since it uses less digits than its factorization.

20420023300030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209544.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20420023300030 its reverse (3000332002402), we get a palindrome (23420355302432).

The spelling of 20420023300030 in words is "twenty trillion, four hundred twenty billion, twenty-three million, three hundred thousand, thirty".