311341231 has 8 divisors (see below), whose sum is σ = 313514864. Its totient is φ = 309173760.

The previous prime is 311341159. The next prime is 311341259. The reversal of 311341231 is 132143113.

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

It is a cyclic number.

It is not a de Polignac number, because 311341231 - 2¹³ = 311333039 is a prime.

It is a super-2 number, since 2×311341231² = 193866724241190722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311341199 and 311341208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311341031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145036 + ... + 147166.

It is an arithmetic number, because the mean of its divisors is an integer number (39189358).

Almost surely, 2^311341231 is an apocalyptic number.

311341231 is a deficient number, since it is larger than the sum of its proper divisors (2173633).

311341231 is a wasteful number, since it uses less digits than its factorization.

311341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its digits is 216, while the sum is 19.

The square root of 311341231 is about 17644.8641536284. The cubic root of 311341231 is about 677.7645964759.

Adding to 311341231 its reverse (132143113), we get a palindrome (443484344).

It can be divided in two parts, 3113 and 41231, that added together give a palindrome (44344).

The spelling of 311341231 in words is "three hundred eleven million, three hundred forty-one thousand, two hundred thirty-one".