122123311 has 4 divisors (see below), whose sum is σ = 124963432. Its totient is φ = 119283192.

The previous prime is 122123269. The next prime is 122123329. The reversal of 122123311 is 113321221.

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 122123311 - 2¹⁵ = 122090543 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 (122123371) 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, 1419996 + ... + 1420081.

It is an arithmetic number, because the mean of its divisors is an integer number (31240858).

Almost surely, 2^122123311 is an apocalyptic number.

122123311 is a deficient number, since it is larger than the sum of its proper divisors (2840121).

122123311 is an equidigital number, since it uses as much as digits as its factorization.

122123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840120.

The product of its digits is 72, while the sum is 16.

The square root of 122123311 is about 11050.9416340871. The cubic root of 122123311 is about 496.1346091793.

Adding to 122123311 its reverse (113321221), we get a palindrome (235444532).

The spelling of 122123311 in words is "one hundred twenty-two million, one hundred twenty-three thousand, three hundred eleven".