123120023 has 8 divisors (see below), whose sum is σ = 133636608. Its totient is φ = 112752864.

The previous prime is 123120017. The next prime is 123120029. The reversal of 123120023 is 320021321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123120017) and next prime (123120029).

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

It is a cyclic number.

It is not a de Polignac number, because 123120023 - 2¹⁴ = 123103639 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 (123120029) 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, 35636 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (16704576).

Almost surely, 2^123120023 is an apocalyptic number.

123120023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123120023 is a deficient number, since it is larger than the sum of its proper divisors (10516585).

123120023 is a wasteful number, since it uses less digits than its factorization.

123120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74713.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123120023 is about 11095.9462417587. The cubic root of 123120023 is about 497.4806914890.

Adding to 123120023 its reverse (320021321), we get a palindrome (443141344).

The spelling of 123120023 in words is "one hundred twenty-three million, one hundred twenty thousand, twenty-three".