122643023 has 4 divisors (see below), whose sum is σ = 122738880. Its totient is φ = 122547168.

The previous prime is 122643019. The next prime is 122643029. The reversal of 122643023 is 320346221.

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

It is a cyclic number.

It is not a de Polignac number, because 122643023 - 2² = 122643019 is a prime.

It is a super-2 number, since 2×122643023² = 30082622181157058, which contains 22 as substring.

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 122643023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122643029) 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, 45983 + ... + 48576.

It is an arithmetic number, because the mean of its divisors is an integer number (30684720).

Almost surely, 2^122643023 is an apocalyptic number.

122643023 is a deficient number, since it is larger than the sum of its proper divisors (95857).

122643023 is an equidigital number, since it uses as much as digits as its factorization.

122643023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95856.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 122643023 is about 11074.4310463337. The cubic root of 122643023 is about 496.8374021259.

Adding to 122643023 its reverse (320346221), we get a palindrome (442989244).

The spelling of 122643023 in words is "one hundred twenty-two million, six hundred forty-three thousand, twenty-three".