311322134 has 8 divisors (see below), whose sum is σ = 483086160. Its totient is φ = 150293416.

The previous prime is 311322103. The next prime is 311322157. The reversal of 311322134 is 431223113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×311322134² = 193842942236627912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2683754 + ... + 2683869.

It is an arithmetic number, because the mean of its divisors is an integer number (60385770).

Almost surely, 2^311322134 is an apocalyptic number.

311322134 is a deficient number, since it is larger than the sum of its proper divisors (171764026).

311322134 is a wasteful number, since it uses less digits than its factorization.

311322134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367654.

The product of its digits is 432, while the sum is 20.

The square root of 311322134 is about 17644.3229963634. The cubic root of 311322134 is about 677.7507386528.

Adding to 311322134 its reverse (431223113), we get a palindrome (742545247).

The spelling of 311322134 in words is "three hundred eleven million, three hundred twenty-two thousand, one hundred thirty-four".