122320143 has 24 divisors (see below), whose sum is σ = 193476816. Its totient is φ = 73852800.

The previous prime is 122320123. The next prime is 122320147. The reversal of 122320143 is 341023221.

It is not a de Polignac number, because 122320143 - 2⁵ = 122320111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122320147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25621 + ... + 30017.

It is an arithmetic number, because the mean of its divisors is an integer number (8061534).

Almost surely, 2^122320143 is an apocalyptic number.

122320143 is a deficient number, since it is larger than the sum of its proper divisors (71156673).

122320143 is a wasteful number, since it uses less digits than its factorization.

122320143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695 (or 4692 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 122320143 is about 11059.8437149898. The cubic root of 122320143 is about 496.4010140896.

Adding to 122320143 its reverse (341023221), we get a palindrome (463343364).

The spelling of 122320143 in words is "one hundred twenty-two million, three hundred twenty thousand, one hundred forty-three".