1231363 has 4 divisors (see below), whose sum is σ = 1407280. Its totient is φ = 1055448.

The previous prime is 1231357. The next prime is 1231379. The reversal of 1231363 is 3631321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231363.

It is not an unprimeable number, because it can be changed into a prime (1231303) 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, 87948 + ... + 87961.

It is an arithmetic number, because the mean of its divisors is an integer number (351820).

2^1231363 is an apocalyptic number.

1231363 is a deficient number, since it is larger than the sum of its proper divisors (175917).

1231363 is an equidigital number, since it uses as much as digits as its factorization.

1231363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175916.

The product of its digits is 324, while the sum is 19.

The square root of 1231363 is about 1109.6679683581. The cubic root of 1231363 is about 107.1836889028.

Adding to 1231363 its reverse (3631321), we get a palindrome (4862684).

It can be divided in two parts, 12 and 31363, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 1231363 in words is "one million, two hundred thirty-one thousand, three hundred sixty-three".