1201203113 has 16 divisors (see below), whose sum is σ = 1392240960. Its totient is φ = 1025841600.

The previous prime is 1201203109. The next prime is 1201203127. The reversal of 1201203113 is 3113021021.

It is a cyclic number.

It is not a de Polignac number, because 1201203113 - 2² = 1201203109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201203173) 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, 39083 + ... + 62688.

It is an arithmetic number, because the mean of its divisors is an integer number (87015060).

Almost surely, 2^1201203113 is an apocalyptic number.

It is an amenable number.

1201203113 is a deficient number, since it is larger than the sum of its proper divisors (191037847).

1201203113 is a wasteful number, since it uses less digits than its factorization.

1201203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101848.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1201203113 is about 34658.3772412962. The cubic root of 1201203113 is about 1063.0135889896.

Adding to 1201203113 its reverse (3113021021), we get a palindrome (4314224134).

The spelling of 1201203113 in words is "one billion, two hundred one million, two hundred three thousand, one hundred thirteen".