123243453 has 12 divisors (see below), whose sum is σ = 185758560. Its totient is φ = 78589896.

The previous prime is 123243409. The next prime is 123243473. The reversal of 123243453 is 354342321.

It is not a de Polignac number, because 123243453 - 2²⁵ = 89689021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297483 + ... + 297896.

It is an arithmetic number, because the mean of its divisors is an integer number (15479880).

Almost surely, 2^123243453 is an apocalyptic number.

It is an amenable number.

123243453 is a deficient number, since it is larger than the sum of its proper divisors (62515107).

123243453 is a wasteful number, since it uses less digits than its factorization.

123243453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595408 (or 595405 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 123243453 is about 11101.5067896209. The cubic root of 123243453 is about 497.6468803621.

Adding to 123243453 its reverse (354342321), we get a palindrome (477585774).

The spelling of 123243453 in words is "one hundred twenty-three million, two hundred forty-three thousand, four hundred fifty-three".