10123229999 has 4 divisors (see below), whose sum is σ = 10133699664. Its totient is φ = 10112760336.

The previous prime is 10123229981. The next prime is 10123230037. The reversal of 10123229999 is 99992232101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99992232101 = 168869 ⋅592129.

It is a cyclic number.

It is not a de Polignac number, because 10123229999 - 2¹⁶ = 10123164463 is a prime.

It is a super-2 number, since 2×10123229999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123229939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5233382 + ... + 5235315.

It is an arithmetic number, because the mean of its divisors is an integer number (2533424916).

Almost surely, 2^10123229999 is an apocalyptic number.

10123229999 is a deficient number, since it is larger than the sum of its proper divisors (10469665).

10123229999 is an equidigital number, since it uses as much as digits as its factorization.

10123229999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469664.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 10123229999 in words is "ten billion, one hundred twenty-three million, two hundred twenty-nine thousand, nine hundred ninety-nine".