1201431242 has 32 divisors (see below), whose sum is σ = 2120935104. Its totient is φ = 504275200.

The previous prime is 1201431193. The next prime is 1201431263. The reversal of 1201431242 is 2421341021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10484 + ... + 50127.

It is an arithmetic number, because the mean of its divisors is an integer number (66279222).

Almost surely, 2^1201431242 is an apocalyptic number.

1201431242 is a deficient number, since it is larger than the sum of its proper divisors (919503862).

1201431242 is a wasteful number, since it uses less digits than its factorization.

1201431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60694.

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

The square root of 1201431242 is about 34661.6681941305. The cubic root of 1201431242 is about 1063.0808795458.

Adding to 1201431242 its reverse (2421341021), we get a palindrome (3622772263).

The spelling of 1201431242 in words is "one billion, two hundred one million, four hundred thirty-one thousand, two hundred forty-two".