1235403223 has 4 divisors (see below), whose sum is σ = 1235539240. Its totient is φ = 1235267208.

The previous prime is 1235403217. The next prime is 1235403233. The reversal of 1235403223 is 3223045321.

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 1235403223 - 2²¹ = 1233306071 is a prime.

It is a super-2 number, since 2×1235403223² = 3052442246797575458, 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 (1235403203) 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, 53328 + ... + 72901.

It is an arithmetic number, because the mean of its divisors is an integer number (308884810).

Almost surely, 2^1235403223 is an apocalyptic number.

1235403223 is a deficient number, since it is larger than the sum of its proper divisors (136017).

1235403223 is an equidigital number, since it uses as much as digits as its factorization.

1235403223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136016.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1235403223 is about 35148.3032734156. The cubic root of 1235403223 is about 1073.0078766366.

Adding to 1235403223 its reverse (3223045321), we get a palindrome (4458448544).

The spelling of 1235403223 in words is "one billion, two hundred thirty-five million, four hundred three thousand, two hundred twenty-three".