122011323143 has 4 divisors (see below), whose sum is σ = 122324977320. Its totient is φ = 121697668968.

The previous prime is 122011323131. The next prime is 122011323163. The reversal of 122011323143 is 341323110221.

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 122011323143 - 2⁶ = 122011323079 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 (122011323113) 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, 156826505 + ... + 156827282.

It is an arithmetic number, because the mean of its divisors is an integer number (30581244330).

Almost surely, 2^122011323143 is an apocalyptic number.

122011323143 is a deficient number, since it is larger than the sum of its proper divisors (313654177).

122011323143 is an equidigital number, since it uses as much as digits as its factorization.

122011323143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313654176.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 122011323143 its reverse (341323110221), we get a palindrome (463334433364).

The spelling of 122011323143 in words is "one hundred twenty-two billion, eleven million, three hundred twenty-three thousand, one hundred forty-three".