1201399303 has 4 divisors (see below), whose sum is σ = 1293814648. Its totient is φ = 1108983960.

The previous prime is 1201399291. The next prime is 1201399321. The reversal of 1201399303 is 3039931021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3039931021 = 31 ⋅98062291.

It is a cyclic number.

It is not a de Polignac number, because 1201399303 - 2²⁵ = 1167844871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201319303) 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 3 ways as a sum of consecutive naturals, for example, 46207653 + ... + 46207678.

It is an arithmetic number, because the mean of its divisors is an integer number (323453662).

Almost surely, 2^1201399303 is an apocalyptic number.

1201399303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201399303 is a deficient number, since it is larger than the sum of its proper divisors (92415345).

1201399303 is an equidigital number, since it uses as much as digits as its factorization.

1201399303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92415344.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1201399303 is about 34661.2074659842. The cubic root of 1201399303 is about 1063.0714591035.

The spelling of 1201399303 in words is "one billion, two hundred one million, three hundred ninety-nine thousand, three hundred three".