311191738342 has 32 divisors (see below), whose sum is σ = 485312705280. Its totient is φ = 149476578720.

The previous prime is 311191738303. The next prime is 311191738369. The reversal of 311191738342 is 243837191113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10140073 + ... + 10170715.

It is an arithmetic number, because the mean of its divisors is an integer number (15166022040).

Almost surely, 2^311191738342 is an apocalyptic number.

311191738342 is a deficient number, since it is larger than the sum of its proper divisors (174120966938).

311191738342 is a wasteful number, since it uses less digits than its factorization.

311191738342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548.

The product of its digits is 108864, while the sum is 43.

The spelling of 311191738342 in words is "three hundred eleven billion, one hundred ninety-one million, seven hundred thirty-eight thousand, three hundred forty-two".