109312213 has 2 divisors, whose sum is σ = 109312214. Its totient is φ = 109312212.

The previous prime is 109312139. The next prime is 109312219. The reversal of 109312213 is 312213901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91814724 + 17497489 = 9582^2 + 4183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109312213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109312219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54656106 + 54656107.

It is an arithmetic number, because the mean of its divisors is an integer number (54656107).

Almost surely, 2^109312213 is an apocalyptic number.

It is an amenable number.

109312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

109312213 is an equidigital number, since it uses as much as digits as its factorization.

109312213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 109312213 is about 10455.2481080078. The cubic root of 109312213 is about 478.1412679216.

The spelling of 109312213 in words is "one hundred nine million, three hundred twelve thousand, two hundred thirteen".