122142311 has 4 divisors (see below), whose sum is σ = 122177232. Its totient is φ = 122107392.

The previous prime is 122142301. The next prime is 122142323. The reversal of 122142311 is 113241221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113241221 = 41 ⋅2761981.

It is a cyclic number.

It is not a de Polignac number, because 122142311 - 2⁶ = 122142247 is a prime.

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 122142311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122142301) 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, 11546 + ... + 19431.

It is an arithmetic number, because the mean of its divisors is an integer number (30544308).

Almost surely, 2^122142311 is an apocalyptic number.

122142311 is a deficient number, since it is larger than the sum of its proper divisors (34921).

122142311 is an equidigital number, since it uses as much as digits as its factorization.

122142311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34920.

The product of its digits is 96, while the sum is 17.

The square root of 122142311 is about 11051.8012559039. The cubic root of 122142311 is about 496.1603374607.

Adding to 122142311 its reverse (113241221), we get a palindrome (235383532).

The spelling of 122142311 in words is "one hundred twenty-two million, one hundred forty-two thousand, three hundred eleven".