40020243201 has 12 divisors (see below), whose sum is σ = 61207431012. Its totient is φ = 25110740736.

The previous prime is 40020243169. The next prime is 40020243209. The reversal of 40020243201 is 10234202004.

40020243201 is a `hidden beast` number, since 400 + 2 + 0 + 243 + 20 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17774222400 + 22246020801 = 133320^2 + 149151^2 .

It is not a de Polignac number, because 40020243201 - 2⁵ = 40020243169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40020243209) 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, 130784956 + ... + 130785261.

It is an arithmetic number, because the mean of its divisors is an integer number (5100619251).

Almost surely, 2^40020243201 is an apocalyptic number.

It is an amenable number.

40020243201 is a deficient number, since it is larger than the sum of its proper divisors (21187187811).

40020243201 is a wasteful number, since it uses less digits than its factorization.

40020243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261570240 (or 261570237 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40020243201 its reverse (10234202004), we get a palindrome (50254445205).

The spelling of 40020243201 in words is "forty billion, twenty million, two hundred forty-three thousand, two hundred one".