1201431122 has 8 divisors (see below), whose sum is σ = 1804934016. Its totient is φ = 599786452.

The previous prime is 1201431113. The next prime is 1201431139. The reversal of 1201431122 is 2211341021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1201431122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462938 + ... + 465525.

It is an arithmetic number, because the mean of its divisors is an integer number (225616752).

Almost surely, 2^1201431122 is an apocalyptic number.

1201431122 is a deficient number, since it is larger than the sum of its proper divisors (603502894).

1201431122 is an equidigital number, since it uses as much as digits as its factorization.

1201431122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929112.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1201431122 is about 34661.6664631117. Note that the first 3 decimals coincide. The cubic root of 1201431122 is about 1063.0808441520.

Adding to 1201431122 its reverse (2211341021), we get a palindrome (3412772143).

The spelling of 1201431122 in words is "one billion, two hundred one million, four hundred thirty-one thousand, one hundred twenty-two".