311102134243 has 4 divisors (see below), whose sum is σ = 311121096048. Its totient is φ = 311083172440.

The previous prime is 311102134201. The next prime is 311102134249. The reversal of 311102134243 is 342431201113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342431201113 = 502841 ⋅680993.

It is a cyclic number.

It is not a de Polignac number, because 311102134243 - 2²¹ = 311100037091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311102134249) 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, 9456271 + ... + 9489112.

It is an arithmetic number, because the mean of its divisors is an integer number (77780274012).

Almost surely, 2^311102134243 is an apocalyptic number.

311102134243 is a deficient number, since it is larger than the sum of its proper divisors (18961805).

311102134243 is a wasteful number, since it uses less digits than its factorization.

311102134243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18961804.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311102134243 its reverse (342431201113), we get a palindrome (653533335356).

The spelling of 311102134243 in words is "three hundred eleven billion, one hundred two million, one hundred thirty-four thousand, two hundred forty-three".