1223104031 has 4 divisors (see below), whose sum is σ = 1223212200. Its totient is φ = 1222995864.

The previous prime is 1223104021. The next prime is 1223104033. The reversal of 1223104031 is 1304013221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1223104031 - 2¹⁸ = 1222841887 is a prime.

It is a super-2 number, since 2×1223104031² = 2991966941296897922, 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 (1223104033) 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, 34841 + ... + 60498.

It is an arithmetic number, because the mean of its divisors is an integer number (305803050).

Almost surely, 2^1223104031 is an apocalyptic number.

1223104031 is a deficient number, since it is larger than the sum of its proper divisors (108169).

1223104031 is an equidigital number, since it uses as much as digits as its factorization.

1223104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108168.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1223104031 is about 34972.9042402829. The cubic root of 1223104031 is about 1069.4351783605.

Adding to 1223104031 its reverse (1304013221), we get a palindrome (2527117252).

The spelling of 1223104031 in words is "one billion, two hundred twenty-three million, one hundred four thousand, thirty-one".