109243023 has 16 divisors (see below), whose sum is σ = 148248576. Its totient is φ = 71543360.

The previous prime is 109243021. The next prime is 109243033. The reversal of 109243023 is 320342901.

It is a cyclic number.

It is not a de Polignac number, because 109243023 - 2¹ = 109243021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109242984 and 109243002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109243021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46411 + ... + 48707.

It is an arithmetic number, because the mean of its divisors is an integer number (9265536).

Almost surely, 2^109243023 is an apocalyptic number.

109243023 is a deficient number, since it is larger than the sum of its proper divisors (39005553).

109243023 is a wasteful number, since it uses less digits than its factorization.

109243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 109243023 is about 10451.9387196826. The cubic root of 109243023 is about 478.0403655740.

Adding to 109243023 its reverse (320342901), we get a palindrome (429585924).

Subtracting 109243023 from its reverse (320342901), we obtain a triangular number (211099878 = T₂₀₅₄₇).

The spelling of 109243023 in words is "one hundred nine million, two hundred forty-three thousand, twenty-three".