202011144140 has 24 divisors (see below), whose sum is σ = 456855972720. Its totient is φ = 74588730048.

The previous prime is 202011144121. The next prime is 202011144149. The reversal of 202011144140 is 41441110202.

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

It is not an unprimeable number, because it can be changed into a prime (202011144149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388482710 + ... + 388483229.

It is an arithmetic number, because the mean of its divisors is an integer number (19035665530).

Almost surely, 2^202011144140 is an apocalyptic number.

202011144140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202011144140 is an abundant number, since it is smaller than the sum of its proper divisors (254844828580).

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

202011144140 is a wasteful number, since it uses less digits than its factorization.

202011144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776965961 (or 776965959 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202011144140 its reverse (41441110202), we get a palindrome (243452254342).

The spelling of 202011144140 in words is "two hundred two billion, eleven million, one hundred forty-four thousand, one hundred forty".