311134142 has 16 divisors (see below), whose sum is σ = 511773552. Its totient is φ = 140689920.

The previous prime is 311134123. The next prime is 311134169. The reversal of 311134142 is 241431113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32393 + ... + 40884.

It is an arithmetic number, because the mean of its divisors is an integer number (31985847).

Almost surely, 2^311134142 is an apocalyptic number.

311134142 is a deficient number, since it is larger than the sum of its proper divisors (200639410).

311134142 is a wasteful number, since it uses less digits than its factorization.

311134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73483.

The product of its digits is 288, while the sum is 20.

The square root of 311134142 is about 17638.9949260155. The cubic root of 311134142 is about 677.6142911627.

Adding to 311134142 its reverse (241431113), we get a palindrome (552565255).

The spelling of 311134142 in words is "three hundred eleven million, one hundred thirty-four thousand, one hundred forty-two".