311122101231103 has 4 divisors (see below), whose sum is σ = 311122337937048. Its totient is φ = 311121864525160.

The previous prime is 311122101231037. The next prime is 311122101231121. The reversal of 311122101231103 is 301132101221113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311122101231103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311122101231703) 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, 116370328 + ... + 119013853.

It is an arithmetic number, because the mean of its divisors is an integer number (77780584484262).

Almost surely, 2^{311122101231103} is an apocalyptic number.

311122101231103 is a deficient number, since it is larger than the sum of its proper divisors (236705945).

311122101231103 is a wasteful number, since it uses less digits than its factorization.

311122101231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236705944.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 311122101231103 its reverse (301132101221113), we get a palindrome (612254202452216).

The spelling of 311122101231103 in words is "three hundred eleven trillion, one hundred twenty-two billion, one hundred one million, two hundred thirty-one thousand, one hundred three".