68321131 has 8 divisors (see below), whose sum is σ = 72089600. Its totient is φ = 64569960.

The previous prime is 68321111. The next prime is 68321153. The reversal of 68321131 is 13112386.

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 68321131 - 2⁹ = 68320619 is a prime.

It is a super-2 number, since 2×68321131² = 9335553882238322, 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 = 68321096 and 68321105.

It is not an unprimeable number, because it can be changed into a prime (68321101) 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, 4246 + ... + 12436.

It is an arithmetic number, because the mean of its divisors is an integer number (9011200).

Almost surely, 2^68321131 is an apocalyptic number.

68321131 is a deficient number, since it is larger than the sum of its proper divisors (3768469).

68321131 is a wasteful number, since it uses less digits than its factorization.

68321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649.

The product of its digits is 864, while the sum is 25.

The square root of 68321131 is about 8265.6597437833. The cubic root of 68321131 is about 408.8070239378.

The spelling of 68321131 in words is "sixty-eight million, three hundred twenty-one thousand, one hundred thirty-one".