122023311 has 4 divisors (see below), whose sum is σ = 162697752. Its totient is φ = 81348872.

The previous prime is 122023309. The next prime is 122023351. The reversal of 122023311 is 113320221.

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 122023311 - 2¹ = 122023309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122023351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20337216 + ... + 20337221.

It is an arithmetic number, because the mean of its divisors is an integer number (40674438).

Almost surely, 2^122023311 is an apocalyptic number.

122023311 is a deficient number, since it is larger than the sum of its proper divisors (40674441).

122023311 is an equidigital number, since it uses as much as digits as its factorization.

122023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40674440.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122023311 is about 11046.4162061729. The cubic root of 122023311 is about 495.9991531702. Note that the first 3 decimals are identical.

Adding to 122023311 its reverse (113320221), we get a palindrome (235343532).

It can be divided in two parts, 1220 and 23311, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 122023311 in words is "one hundred twenty-two million, twenty-three thousand, three hundred eleven".