311322343154 has 4 divisors (see below), whose sum is σ = 466983514734. Its totient is φ = 155661171576.

The previous prime is 311322343117. The next prime is 311322343229. The reversal of 311322343154 is 451343223113.

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

It can be written as a sum of positive squares in only one way, i.e., 292814101129 + 18508242025 = 541123^2 + 136045^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311322343154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77830585787 + ... + 77830585790.

Almost surely, 2^311322343154 is an apocalyptic number.

311322343154 is a deficient number, since it is larger than the sum of its proper divisors (155661171580).

311322343154 is a wasteful number, since it uses less digits than its factorization.

311322343154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155661171579.

The product of its digits is 25920, while the sum is 32.

Adding to 311322343154 its reverse (451343223113), we get a palindrome (762665566267).

The spelling of 311322343154 in words is "three hundred eleven billion, three hundred twenty-two million, three hundred forty-three thousand, one hundred fifty-four".