123023427 has 4 divisors (see below), whose sum is σ = 164031240. Its totient is φ = 82015616.

The previous prime is 123023419. The next prime is 123023443. The reversal of 123023427 is 724320321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724320321 = 3 ⋅241440107.

It is a cyclic number.

It is not a de Polignac number, because 123023427 - 2³ = 123023419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123023397 and 123023406.

It is not an unprimeable number, because it can be changed into a prime (123023447) 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, 20503902 + ... + 20503907.

It is an arithmetic number, because the mean of its divisors is an integer number (41007810).

Almost surely, 2^123023427 is an apocalyptic number.

123023427 is a deficient number, since it is larger than the sum of its proper divisors (41007813).

123023427 is an equidigital number, since it uses as much as digits as its factorization.

123023427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41007812.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 123023427 is about 11091.5926268503. The cubic root of 123023427 is about 497.3505550131.

Adding to 123023427 its reverse (724320321), we get a palindrome (847343748).

The spelling of 123023427 in words is "one hundred twenty-three million, twenty-three thousand, four hundred twenty-seven".