122123312311 has 32 divisors (see below), whose sum is σ = 164623366656. Its totient is φ = 87490800000.

The previous prime is 122123312287. The next prime is 122123312321. The reversal of 122123312311 is 113213321221.

It is a cyclic number.

It is not a de Polignac number, because 122123312311 - 2¹⁵ = 122123279543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123312321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8221 + ... + 494281.

It is an arithmetic number, because the mean of its divisors is an integer number (5144480208).

Almost surely, 2^122123312311 is an apocalyptic number.

122123312311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122123312311 is a deficient number, since it is larger than the sum of its proper divisors (42500054345).

122123312311 is a wasteful number, since it uses less digits than its factorization.

122123312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486343.

The product of its digits is 432, while the sum is 22.

Adding to 122123312311 its reverse (113213321221), we get a palindrome (235336633532).

It can be divided in two parts, 122123 and 312311, that added together give a palindrome (434434).

The spelling of 122123312311 in words is "one hundred twenty-two billion, one hundred twenty-three million, three hundred twelve thousand, three hundred eleven".