1303003231 has 16 divisors (see below), whose sum is σ = 1350236160. Its totient is φ = 1256705280.

The previous prime is 1303003213. The next prime is 1303003279. The reversal of 1303003231 is 1323003031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303003231 is a prime.

It is a super-3 number, since 3×1303003231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303003531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417390 + ... + 1418308.

It is an arithmetic number, because the mean of its divisors is an integer number (84389760).

Almost surely, 2^1303003231 is an apocalyptic number.

1303003231 is a deficient number, since it is larger than the sum of its proper divisors (47232929).

1303003231 is an equidigital number, since it uses as much as digits as its factorization.

1303003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1303003231 is about 36097.1360498309. The cubic root of 1303003231 is about 1092.2326738680.

Adding to 1303003231 its reverse (1323003031), we get a palindrome (2626006262).

The spelling of 1303003231 in words is "one billion, three hundred three million, three thousand, two hundred thirty-one".