109742023 has 4 divisors (see below), whose sum is σ = 110130088. Its totient is φ = 109353960.

The previous prime is 109741997. The next prime is 109742027. The reversal of 109742023 is 320247901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109742023 - 2⁵ = 109741991 is a prime.

It is a super-2 number, since 2×109742023² = 24086623224265058, 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 = 109741982 and 109742000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109742027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193608 + ... + 194173.

It is an arithmetic number, because the mean of its divisors is an integer number (27532522).

Almost surely, 2^109742023 is an apocalyptic number.

109742023 is a deficient number, since it is larger than the sum of its proper divisors (388065).

109742023 is an equidigital number, since it uses as much as digits as its factorization.

109742023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388064.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 109742023 is about 10475.7826915224. The cubic root of 109742023 is about 478.7671239844.

Adding to 109742023 its reverse (320247901), we get a palindrome (429989924).

The spelling of 109742023 in words is "one hundred nine million, seven hundred forty-two thousand, twenty-three".