3021020240420 has 96 divisors (see below), whose sum is σ = 8060052166656. Its totient is φ = 925261056000.

The previous prime is 3021020240411. The next prime is 3021020240449. The reversal of 3021020240420 is 240420201203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3021020240392 and 3021020240401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26716181 + ... + 26829020.

It is an arithmetic number, because the mean of its divisors is an integer number (83958876736).

Almost surely, 2^{3021020240420} is an apocalyptic number.

It is an amenable number.

3021020240420 is an abundant number, since it is smaller than the sum of its proper divisors (5039031926236).

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

3021020240420 is a wasteful number, since it uses less digits than its factorization.

3021020240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53545261 (or 53545259 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 3021020240420 its reverse (240420201203), we get a palindrome (3261440441623).

The spelling of 3021020240420 in words is "three trillion, twenty-one billion, twenty million, two hundred forty thousand, four hundred twenty".