109723213 has 2 divisors, whose sum is σ = 109723214. Its totient is φ = 109723212.

The previous prime is 109723193. The next prime is 109723223. The reversal of 109723213 is 312327901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103184964 + 6538249 = 10158^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 109723213 - 2⁵ = 109723181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109723223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54861606 + 54861607.

It is an arithmetic number, because the mean of its divisors is an integer number (54861607).

Almost surely, 2^109723213 is an apocalyptic number.

It is an amenable number.

109723213 is a deficient number, since it is larger than the sum of its proper divisors (1).

109723213 is an equidigital number, since it uses as much as digits as its factorization.

109723213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 109723213 is about 10474.8848681024. The cubic root of 109723213 is about 478.7397685438.

It can be divided in two parts, 1097 and 23213, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 109723213 in words is "one hundred nine million, seven hundred twenty-three thousand, two hundred thirteen".