311143413111 has 4 divisors (see below), whose sum is σ = 414857884152. Its totient is φ = 207428942072.

The previous prime is 311143413107. The next prime is 311143413127. The reversal of 311143413111 is 111314341113.

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 311143413111 - 2² = 311143413107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311143413131) 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, 51857235516 + ... + 51857235521.

It is an arithmetic number, because the mean of its divisors is an integer number (103714471038).

Almost surely, 2^311143413111 is an apocalyptic number.

311143413111 is a deficient number, since it is larger than the sum of its proper divisors (103714471041).

311143413111 is a wasteful number, since it uses less digits than its factorization.

311143413111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103714471040.

The product of its digits is 432, while the sum is 24.

Adding to 311143413111 its reverse (111314341113), we get a palindrome (422457754224).

The spelling of 311143413111 in words is "three hundred eleven billion, one hundred forty-three million, four hundred thirteen thousand, one hundred eleven".