201144132420 has 96 divisors (see below), whose sum is σ = 702175896576. Its totient is φ = 41796182400.

The previous prime is 201144132419. The next prime is 201144132437. The reversal of 201144132420 is 24231441102.

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, 21764226 + ... + 21773465.

It is an arithmetic number, because the mean of its divisors is an integer number (7314332256).

Almost surely, 2^201144132420 is an apocalyptic number.

201144132420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201144132420 is an abundant number, since it is smaller than the sum of its proper divisors (501031764156).

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

201144132420 is a wasteful number, since it uses less digits than its factorization.

201144132420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43537721 (or 43537719 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 201144132420 its reverse (24231441102), we get a palindrome (225375573522).

The spelling of 201144132420 in words is "two hundred one billion, one hundred forty-four million, one hundred thirty-two thousand, four hundred twenty".