123152223 has 4 divisors (see below), whose sum is σ = 164202968. Its totient is φ = 82101480.

The previous prime is 123152221. The next prime is 123152257. The reversal of 123152223 is 322251321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123152223 - 2¹ = 123152221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123152223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123152221) 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, 20525368 + ... + 20525373.

It is an arithmetic number, because the mean of its divisors is an integer number (41050742).

Almost surely, 2^123152223 is an apocalyptic number.

123152223 is a deficient number, since it is larger than the sum of its proper divisors (41050745).

123152223 is an equidigital number, since it uses as much as digits as its factorization.

123152223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41050744.

The product of its digits is 720, while the sum is 21.

The square root of 123152223 is about 11097.3971272547. The cubic root of 123152223 is about 497.5240569834.

The spelling of 123152223 in words is "one hundred twenty-three million, one hundred fifty-two thousand, two hundred twenty-three".