1240100201 has 4 divisors (see below), whose sum is σ = 1263498372. Its totient is φ = 1216702032.

The previous prime is 1240100179. The next prime is 1240100231. The reversal of 1240100201 is 1020010421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 785344576 + 454755625 = 28024^2 + 21325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240100201 - 2⁶ = 1240100137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11699006 + ... + 11699111.

It is an arithmetic number, because the mean of its divisors is an integer number (315874593).

Almost surely, 2^1240100201 is an apocalyptic number.

It is an amenable number.

1240100201 is a deficient number, since it is larger than the sum of its proper divisors (23398171).

1240100201 is an equidigital number, since it uses as much as digits as its factorization.

1240100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23398170.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1240100201 is about 35215.0564531707. The cubic root of 1240100201 is about 1074.3660082872.

Adding to 1240100201 its reverse (1020010421), we get a palindrome (2260110622).

The spelling of 1240100201 in words is "one billion, two hundred forty million, one hundred thousand, two hundred one".