1303011231 has 8 divisors (see below), whose sum is σ = 1739646384. Its totient is φ = 867525120.

The previous prime is 1303011197. The next prime is 1303011233. The reversal of 1303011231 is 1321103031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1303011231 - 2⁶ = 1303011167 is a prime.

It is a super-2 number, since 2×1303011231² = 3395676536224270722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303011231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303011233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284610 + ... + 289151.

It is an arithmetic number, because the mean of its divisors is an integer number (217455798).

Almost surely, 2^1303011231 is an apocalyptic number.

1303011231 is a deficient number, since it is larger than the sum of its proper divisors (436635153).

1303011231 is an equidigital number, since it uses as much as digits as its factorization.

1303011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574521.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1303011231 is about 36097.2468617760. The cubic root of 1303011231 is about 1092.2349091768.

Adding to 1303011231 its reverse (1321103031), we get a palindrome (2624114262).

The spelling of 1303011231 in words is "one billion, three hundred three million, eleven thousand, two hundred thirty-one".