201112403240 has 48 divisors (see below), whose sum is σ = 526380938100. Its totient is φ = 68952823296.

The previous prime is 201112403231. The next prime is 201112403243. The reversal of 201112403240 is 42304211102.

It can be written as a sum of positive squares in 2 ways, for example, as 196052357284 + 5060045956 = 442778^2 + 71134^2 .

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 (201112403243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51302225 + ... + 51306144.

Almost surely, 2^201112403240 is an apocalyptic number.

201112403240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112403240 is an abundant number, since it is smaller than the sum of its proper divisors (325268534860).

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

201112403240 is a wasteful number, since it uses less digits than its factorization.

201112403240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102608394 (or 102608383 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201112403240 its reverse (42304211102), we get a palindrome (243416614342).

The spelling of 201112403240 in words is "two hundred one billion, one hundred twelve million, four hundred three thousand, two hundred forty".