67313311 has 4 divisors (see below), whose sum is σ = 72491272. Its totient is φ = 62135352.

The previous prime is 67313303. The next prime is 67313327. The reversal of 67313311 is 11331376.

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 67313311 - 2³ = 67313303 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 (67313381) 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, 2588961 + ... + 2588986.

It is an arithmetic number, because the mean of its divisors is an integer number (18122818).

Almost surely, 2^67313311 is an apocalyptic number.

67313311 is a deficient number, since it is larger than the sum of its proper divisors (5177961).

67313311 is a wasteful number, since it uses less digits than its factorization.

67313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177960.

The product of its digits is 1134, while the sum is 25.

The square root of 67313311 is about 8204.4689651433. The cubic root of 67313311 is about 406.7869241079.

Adding to 67313311 its reverse (11331376), we get a palindrome (78644687).

The spelling of 67313311 in words is "sixty-seven million, three hundred thirteen thousand, three hundred eleven".