123356623 has 8 divisors (see below), whose sum is σ = 135672768. Its totient is φ = 111444384.

The previous prime is 123356617. The next prime is 123356647. The reversal of 123356623 is 326653321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123356623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123356663) 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, 100336 + ... + 101557.

It is an arithmetic number, because the mean of its divisors is an integer number (16959096).

Almost surely, 2^123356623 is an apocalyptic number.

123356623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123356623 is a deficient number, since it is larger than the sum of its proper divisors (12316145).

123356623 is a wasteful number, since it uses less digits than its factorization.

123356623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201953.

The product of its digits is 19440, while the sum is 31.

The square root of 123356623 is about 11106.6026758861. The cubic root of 123356623 is about 497.7991574646.

The spelling of 123356623 in words is "one hundred twenty-three million, three hundred fifty-six thousand, six hundred twenty-three".