109331212068 has 36 divisors (see below), whose sum is σ = 297623856348. Its totient is φ = 33640372800.

The previous prime is 109331212049. The next prime is 109331212121. The reversal of 109331212068 is 860212133901.

109331212068 is a `hidden beast` number, since 109 + 331 + 212 + 0 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28369338624 + 80961873444 = 168432^2 + 284538^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116806383 + ... + 116807318.

It is an arithmetic number, because the mean of its divisors is an integer number (8267329343).

Almost surely, 2^109331212068 is an apocalyptic number.

109331212068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

109331212068 is an abundant number, since it is smaller than the sum of its proper divisors (188292644280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109331212068 is a wasteful number, since it uses less digits than its factorization.

109331212068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233613724 (or 233613719 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

Adding to 109331212068 its reverse (860212133901), we get a palindrome (969543345969).

The spelling of 109331212068 in words is "one hundred nine billion, three hundred thirty-one million, two hundred twelve thousand, sixty-eight".