20202331140 has 216 divisors, whose sum is σ = 65895560640. Its totient is φ = 5008229376.

The previous prime is 20202331133. The next prime is 20202331141. The reversal of 20202331140 is 4113320202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20202331141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4315321 + ... + 4319999.

It is an arithmetic number, because the mean of its divisors is an integer number (305072040).

Almost surely, 2^20202331140 is an apocalyptic number.

20202331140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202331140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32947780320).

20202331140 is an abundant number, since it is smaller than the sum of its proper divisors (45693229500).

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

20202331140 is a wasteful number, since it uses less digits than its factorization.

20202331140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4789 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20202331140 its reverse (4113320202), we get a palindrome (24315651342).

The spelling of 20202331140 in words is "twenty billion, two hundred two million, three hundred thirty-one thousand, one hundred forty".