311242330123 has 4 divisors (see below), whose sum is σ = 311508123208. Its totient is φ = 310976537040.

The previous prime is 311242330117. The next prime is 311242330163. The reversal of 311242330123 is 321033242113.

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 311242330123 - 2³⁷ = 173803376651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311242330163) 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, 132894786 + ... + 132897127.

It is an arithmetic number, because the mean of its divisors is an integer number (77877030802).

Almost surely, 2^311242330123 is an apocalyptic number.

311242330123 is a deficient number, since it is larger than the sum of its proper divisors (265793085).

311242330123 is a wasteful number, since it uses less digits than its factorization.

311242330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265793084.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 311242330123 its reverse (321033242113), we get a palindrome (632275572236).

The spelling of 311242330123 in words is "three hundred eleven billion, two hundred forty-two million, three hundred thirty thousand, one hundred twenty-three".