123453423 has 32 divisors (see below), whose sum is σ = 189112320. Its totient is φ = 79535520.

The previous prime is 123453389. The next prime is 123453457. The reversal of 123453423 is 324354321.

123453423 is a `hidden beast` number, since 1 + 234 + 5 + 3 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (123453389) and next prime (123453457).

It is not a de Polignac number, because 123453423 - 2⁶ = 123453359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123453223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190486 + ... + 191132.

It is an arithmetic number, because the mean of its divisors is an integer number (5909760).

Almost surely, 2^123453423 is an apocalyptic number.

123453423 is a deficient number, since it is larger than the sum of its proper divisors (65658897).

123453423 is a wasteful number, since it uses less digits than its factorization.

123453423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 878 counting only the distinct ones).

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

The square root of 123453423 is about 11110.9595895224. The cubic root of 123453423 is about 497.9293338545.

The spelling of 123453423 in words is "one hundred twenty-three million, four hundred fifty-three thousand, four hundred twenty-three".