1223103031 has 4 divisors (see below), whose sum is σ = 1235213064. Its totient is φ = 1210993000.

The previous prime is 1223103001. The next prime is 1223103053. The reversal of 1223103031 is 1303013221.

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 1223103031 - 2⁵ = 1223102999 is a prime.

It is a super-2 number, since 2×1223103031² = 2991962048882773922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223102996 and 1223103014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223103001) 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, 6054865 + ... + 6055066.

It is an arithmetic number, because the mean of its divisors is an integer number (308803266).

Almost surely, 2^1223103031 is an apocalyptic number.

1223103031 is a deficient number, since it is larger than the sum of its proper divisors (12110033).

1223103031 is a wasteful number, since it uses less digits than its factorization.

1223103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12110032.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1223103031 is about 34972.8899434977. The cubic root of 1223103031 is about 1069.4348869066.

Adding to 1223103031 its reverse (1303013221), we get a palindrome (2526116252).

The spelling of 1223103031 in words is "one billion, two hundred twenty-three million, one hundred three thousand, thirty-one".