122311100231 has 4 divisors (see below), whose sum is σ = 122353854264. Its totient is φ = 122268346200.

The previous prime is 122311100189. The next prime is 122311100239. The reversal of 122311100231 is 132001113221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132001113221 = 1319 ⋅100076659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122311100231 is a prime.

It is a super-3 number, since 3×122311100231³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311100239) 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, 21372725 + ... + 21378446.

It is an arithmetic number, because the mean of its divisors is an integer number (30588463566).

Almost surely, 2^122311100231 is an apocalyptic number.

122311100231 is a deficient number, since it is larger than the sum of its proper divisors (42754033).

122311100231 is an equidigital number, since it uses as much as digits as its factorization.

122311100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42754032.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 122311100231 its reverse (132001113221), we get a palindrome (254312213452).

The spelling of 122311100231 in words is "one hundred twenty-two billion, three hundred eleven million, one hundred thousand, two hundred thirty-one".