123320454 has 16 divisors (see below), whose sum is σ = 246750192. Its totient is φ = 41088608.

The previous prime is 123320381. The next prime is 123320459. The reversal of 123320454 is 454023321.

It is a super-2 number, since 2×123320454² = 30415868749532232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123320459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22312 + ... + 27284.

It is an arithmetic number, because the mean of its divisors is an integer number (15421887).

Almost surely, 2^123320454 is an apocalyptic number.

123320454 is an abundant number, since it is smaller than the sum of its proper divisors (123429738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123320454 is a wasteful number, since it uses less digits than its factorization.

123320454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 123320454 is about 11104.9742908302. The cubic root of 123320454 is about 497.7505000103.

Adding to 123320454 its reverse (454023321), we get a palindrome (577343775).

The spelling of 123320454 in words is "one hundred twenty-three million, three hundred twenty thousand, four hundred fifty-four".