1235434223 has 2 divisors, whose sum is σ = 1235434224. Its totient is φ = 1235434222.

The previous prime is 1235434219. The next prime is 1235434243. The reversal of 1235434223 is 3224345321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1235434223 - 2² = 1235434219 is a prime.

It is a super-2 number, since 2×1235434223² = 3052595438719227458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235434243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617717111 + 617717112.

It is an arithmetic number, because the mean of its divisors is an integer number (617717112).

Almost surely, 2^1235434223 is an apocalyptic number.

1235434223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235434223 is an equidigital number, since it uses as much as digits as its factorization.

1235434223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 29.

The square root of 1235434223 is about 35148.7442592193. The cubic root of 1235434223 is about 1073.0168515648.

Adding to 1235434223 its reverse (3224345321), we get a palindrome (4459779544).

The spelling of 1235434223 in words is "one billion, two hundred thirty-five million, four hundred thirty-four thousand, two hundred twenty-three".