1240321201 has 16 divisors (see below), whose sum is σ = 1429170688. Its totient is φ = 1054425600.

The previous prime is 1240321183. The next prime is 1240321237. The reversal of 1240321201 is 1021230421.

It is a cyclic number.

It is not a de Polignac number, because 1240321201 - 2⁵ = 1240321169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240321261) 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 15 ways as a sum of consecutive naturals, for example, 455821 + ... + 458533.

It is an arithmetic number, because the mean of its divisors is an integer number (89323168).

Almost surely, 2^1240321201 is an apocalyptic number.

It is an amenable number.

1240321201 is a deficient number, since it is larger than the sum of its proper divisors (188849487).

1240321201 is a wasteful number, since it uses less digits than its factorization.

1240321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1240321201 is about 35218.1941757382. The cubic root of 1240321201 is about 1074.4298259218.

Adding to 1240321201 its reverse (1021230421), we get a palindrome (2261551622).

The spelling of 1240321201 in words is "one billion, two hundred forty million, three hundred twenty-one thousand, two hundred one".