20202320140 has 12 divisors (see below), whose sum is σ = 42424872336. Its totient is φ = 8080928048.

The previous prime is 20202320137. The next prime is 20202320143. The reversal of 20202320140 is 4102320202.

It is an interprime number because it is at equal distance from previous prime (20202320137) and next prime (20202320143).

It is not an unprimeable number, because it can be changed into a prime (20202320143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505057984 + ... + 505058023.

It is an arithmetic number, because the mean of its divisors is an integer number (3535406028).

Almost surely, 2^20202320140 is an apocalyptic number.

20202320140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202320140 is an abundant number, since it is smaller than the sum of its proper divisors (22222552196).

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

20202320140 is a wasteful number, since it uses less digits than its factorization.

20202320140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010116016 (or 1010116014 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20202320140 its reverse (4102320202), we get a palindrome (24304640342).

The spelling of 20202320140 in words is "twenty billion, two hundred two million, three hundred twenty thousand, one hundred forty".