1303231 has 4 divisors (see below), whose sum is σ = 1348200. Its totient is φ = 1258264.

The previous prime is 1303223. The next prime is 1303241. The reversal of 1303231 is 1323031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323031 = 373 ⋅3547.

It is a cyclic number.

It is not a de Polignac number, because 1303231 - 2³ = 1303223 is a prime.

It is a super-2 number, since 2×1303231² = 3396822078722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303241) 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, 22441 + ... + 22498.

It is an arithmetic number, because the mean of its divisors is an integer number (337050).

2^1303231 is an apocalyptic number.

1303231 is a deficient number, since it is larger than the sum of its proper divisors (44969).

1303231 is an equidigital number, since it uses as much as digits as its factorization.

1303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44968.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1303231 is about 1141.5914330442. The cubic root of 1303231 is about 109.2296312045.

Adding to 1303231 its reverse (1323031), we get a palindrome (2626262).

The spelling of 1303231 in words is "one million, three hundred three thousand, two hundred thirty-one".