1201333113 has 20 divisors (see below), whose sum is σ = 1832772480. Its totient is φ = 783846072.

The previous prime is 1201333103. The next prime is 1201333117. The reversal of 1201333113 is 3113331021.

It is a happy number.

It is not a de Polignac number, because 1201333113 - 2¹⁰ = 1201332089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201333117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 153973 + ... + 161586.

It is an arithmetic number, because the mean of its divisors is an integer number (91638624).

Almost surely, 2^1201333113 is an apocalyptic number.

It is an amenable number.

1201333113 is a deficient number, since it is larger than the sum of its proper divisors (631439367).

1201333113 is an equidigital number, since it uses as much as digits as its factorization.

1201333113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315618 (or 315609 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1201333113 is about 34660.2526390100. The cubic root of 1201333113 is about 1063.0519357605.

Adding to 1201333113 its reverse (3113331021), we get a palindrome (4314664134).

The spelling of 1201333113 in words is "one billion, two hundred one million, three hundred thirty-three thousand, one hundred thirteen".