311141011 has 4 divisors (see below), whose sum is σ = 311752800. Its totient is φ = 310529224.

The previous prime is 311140997. The next prime is 311141041. The reversal of 311141011 is 110141113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311141011 - 2¹⁷ = 311009939 is a prime.

It is a super-2 number, since 2×311141011² = 193617457452204242, 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 = 311140982 and 311141000.

It is not an unprimeable number, because it can be changed into a prime (311141041) by changing a digit.

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, 305131 + ... + 306148.

It is an arithmetic number, because the mean of its divisors is an integer number (77938200).

Almost surely, 2^311141011 is an apocalyptic number.

311141011 is a deficient number, since it is larger than the sum of its proper divisors (611789).

311141011 is an equidigital number, since it uses as much as digits as its factorization.

311141011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611788.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 311141011 is about 17639.1896355813. The cubic root of 311141011 is about 677.6192777561.

Adding to 311141011 its reverse (110141113), we get a palindrome (421282124).

The spelling of 311141011 in words is "three hundred eleven million, one hundred forty-one thousand, eleven".