1331201203 has 4 divisors (see below), whose sum is σ = 1331673928. Its totient is φ = 1330728480.

The previous prime is 1331201197. The next prime is 1331201219. The reversal of 1331201203 is 3021021331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331201203 - 2²⁹ = 794330291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331202203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232113 + ... + 237778.

It is an arithmetic number, because the mean of its divisors is an integer number (332918482).

Almost surely, 2^1331201203 is an apocalyptic number.

1331201203 is a deficient number, since it is larger than the sum of its proper divisors (472725).

1331201203 is an equidigital number, since it uses as much as digits as its factorization.

1331201203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472724.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1331201203 is about 36485.6300891186. The cubic root of 1331201203 is about 1100.0554250310.

Adding to 1331201203 its reverse (3021021331), we get a palindrome (4352222534).

The spelling of 1331201203 in words is "one billion, three hundred thirty-one million, two hundred one thousand, two hundred three".