201112401040 has 40 divisors (see below), whose sum is σ = 467836326648. Its totient is φ = 80401950720.

The previous prime is 201112401023. The next prime is 201112401043. The reversal of 201112401040 is 40104211102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7332839424 + 193779561616 = 85632^2 + 440204^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (201112401043) 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, 521251 + ... + 820930.

Almost surely, 2^201112401040 is an apocalyptic number.

201112401040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112401040 is an abundant number, since it is smaller than the sum of its proper divisors (266723925608).

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

201112401040 is a wasteful number, since it uses less digits than its factorization.

201112401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344067 (or 1344061 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201112401040 its reverse (40104211102), we get a palindrome (241216612142).

The spelling of 201112401040 in words is "two hundred one billion, one hundred twelve million, four hundred one thousand, forty".