10123091 has 4 divisors (see below), whose sum is σ = 11043384. Its totient is φ = 9202800.

The previous prime is 10123063. The next prime is 10123093. The reversal of 10123091 is 19032101.

It is a happy number.

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 10123091 - 2¹⁸ = 9860947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10123093) 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, 460130 + ... + 460151.

It is an arithmetic number, because the mean of its divisors is an integer number (2760846).

Almost surely, 2^10123091 is an apocalyptic number.

10123091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10123091 is a deficient number, since it is larger than the sum of its proper divisors (920293).

10123091 is an equidigital number, since it uses as much as digits as its factorization.

10123091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920292.

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

The square root of 10123091 is about 3181.6805307887. The cubic root of 10123091 is about 216.3238383734.

Adding to 10123091 its reverse (19032101), we get a palindrome (29155192).

The spelling of 10123091 in words is "ten million, one hundred twenty-three thousand, ninety-one".