20202021202340 has 48 divisors (see below), whose sum is σ = 42514721061120. Its totient is φ = 8063587008000.

The previous prime is 20202021202271. The next prime is 20202021202351. The reversal of 20202021202340 is 4320212020202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26318501 + ... + 27075219.

It is an arithmetic number, because the mean of its divisors is an integer number (885723355440).

Almost surely, 2^{20202021202340} is an apocalyptic number.

20202021202340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202021202340 is an abundant number, since it is smaller than the sum of its proper divisors (22312699858780).

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

20202021202340 is a wasteful number, since it uses less digits than its factorization.

20202021202340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759572 (or 759570 counting only the distinct ones).

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

Adding to 20202021202340 its reverse (4320212020202), we get a palindrome (24522233222542).

The spelling of 20202021202340 in words is "twenty trillion, two hundred two billion, twenty-one million, two hundred two thousand, three hundred forty".