420333311020 has 48 divisors (see below), whose sum is σ = 1013323788288. Its totient is φ = 143468015040.

The previous prime is 420333310973. The next prime is 420333311023. The reversal of 420333311020 is 20113333024.

It is a junction number, because it is equal to n+sod(n) for n = 420333310982 and 420333311000.

It is not an unprimeable number, because it can be changed into a prime (420333311023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6700576 + ... + 6763015.

It is an arithmetic number, because the mean of its divisors is an integer number (21110912256).

Almost surely, 2^420333311020 is an apocalyptic number.

It is an amenable number.

420333311020 is an abundant number, since it is smaller than the sum of its proper divisors (592990477268).

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

420333311020 is a wasteful number, since it uses less digits than its factorization.

420333311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463830 (or 13463828 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 420333311020 its reverse (20113333024), we get a palindrome (440446644044).

The spelling of 420333311020 in words is "four hundred twenty billion, three hundred thirty-three million, three hundred eleven thousand, twenty".