1223104331 has 4 divisors (see below), whose sum is σ = 1235713752. Its totient is φ = 1210494912.

The previous prime is 1223104283. The next prime is 1223104339. The reversal of 1223104331 is 1334013221.

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 1223104331 - 2²² = 1218910027 is a prime.

It is a super-2 number, since 2×1223104331² = 2991968409021915122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223104339) 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, 6304565 + ... + 6304758.

It is an arithmetic number, because the mean of its divisors is an integer number (308928438).

Almost surely, 2^1223104331 is an apocalyptic number.

1223104331 is a deficient number, since it is larger than the sum of its proper divisors (12609421).

1223104331 is an equidigital number, since it uses as much as digits as its factorization.

1223104331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609420.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1223104331 is about 34972.9085293174. The cubic root of 1223104331 is about 1069.4352657967.

Adding to 1223104331 its reverse (1334013221), we get a palindrome (2557117552).

The spelling of 1223104331 in words is "one billion, two hundred twenty-three million, one hundred four thousand, three hundred thirty-one".