1223426031 has 8 divisors (see below), whose sum is σ = 1631852544. Its totient is φ = 815308440.

The previous prime is 1223426021. The next prime is 1223426033. The reversal of 1223426031 is 1306243221.

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

It is not a de Polignac number, because 1223426031 - 2⁵ = 1223425999 is a prime.

It is a super-2 number, since 2×1223426031² = 2993542506656825922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223425992 and 1223426010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223426033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67825 + ... + 83946.

It is an arithmetic number, because the mean of its divisors is an integer number (203981568).

Almost surely, 2^1223426031 is an apocalyptic number.

1223426031 is a deficient number, since it is larger than the sum of its proper divisors (408426513).

1223426031 is a wasteful number, since it uses less digits than its factorization.

1223426031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154461.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1223426031 is about 34977.5075012500. The cubic root of 1223426031 is about 1069.5290182695.

Adding to 1223426031 its reverse (1306243221), we get a palindrome (2529669252).

The spelling of 1223426031 in words is "one billion, two hundred twenty-three million, four hundred twenty-six thousand, thirty-one".