68011131 has 8 divisors (see below), whose sum is σ = 90732880. Its totient is φ = 45315072.

The previous prime is 68011109. The next prime is 68011147. The reversal of 68011131 is 13111086.

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

It is not a de Polignac number, because 68011131 - 2⁹ = 68010619 is a prime.

It is a super-2 number, since 2×68011131² = 9251027879798322, 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 = 68011098 and 68011107.

It is not an unprimeable number, because it can be changed into a prime (68019131) 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 7 ways as a sum of consecutive naturals, for example, 975 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (11341610).

Almost surely, 2^68011131 is an apocalyptic number.

68011131 is a deficient number, since it is larger than the sum of its proper divisors (22721749).

68011131 is a wasteful number, since it uses less digits than its factorization.

68011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 68011131 is about 8246.8861396287. The cubic root of 68011131 is about 408.1877800075.

It can be divided in two parts, 680 and 11131, that added together give a palindrome (11811).

The spelling of 68011131 in words is "sixty-eight million, eleven thousand, one hundred thirty-one".