311423141 has 12 divisors (see below), whose sum is σ = 325424580. Its totient is φ = 298023488.

The previous prime is 311423089. The next prime is 311423143. The reversal of 311423141 is 141324113.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 222875041 + 88548100 = 14929^2 + 9410^2 .

It is a de Polignac number, because none of the positive numbers 2^k-311423141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311423143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2755901 + ... + 2756013.

It is an arithmetic number, because the mean of its divisors is an integer number (27118715).

Almost surely, 2^311423141 is an apocalyptic number.

It is an amenable number.

311423141 is a deficient number, since it is larger than the sum of its proper divisors (14001439).

311423141 is an frugal number, since it uses more digits than its factorization.

311423141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 142 counting only the distinct ones).

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

The square root of 311423141 is about 17647.1850729798. The cubic root of 311423141 is about 677.8240284055.

Adding to 311423141 its reverse (141324113), we get a palindrome (452747254).

The spelling of 311423141 in words is "three hundred eleven million, four hundred twenty-three thousand, one hundred forty-one".