10191023 has 4 divisors (see below), whose sum is σ = 10197720. Its totient is φ = 10184328.

The previous prime is 10191017. The next prime is 10191029. The reversal of 10191023 is 32019101.

It is a happy number.

10191023 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (10191017) and next prime (10191029).

It is a cyclic number.

It is not a de Polignac number, because 10191023 - 2⁶ = 10190959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10190992 and 10191010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10191029) 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, 161 + ... + 4517.

It is an arithmetic number, because the mean of its divisors is an integer number (2549430).

Almost surely, 2^10191023 is an apocalyptic number.

10191023 is a deficient number, since it is larger than the sum of its proper divisors (6697).

10191023 is an equidigital number, since it uses as much as digits as its factorization.

10191023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10191023 is about 3192.3381713095. The cubic root of 10191023 is about 216.8066474793.

The spelling of 10191023 in words is "ten million, one hundred ninety-one thousand, twenty-three".