10001023123 has 8 divisors (see below), whose sum is σ = 12308951648. Its totient is φ = 7912897344.

The previous prime is 10001023117. The next prime is 10001023127. The reversal of 10001023123 is 32132010001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001023123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (10001023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54950586 + ... + 54950767.

It is an arithmetic number, because the mean of its divisors is an integer number (1538618956).

Almost surely, 2^10001023123 is an apocalyptic number.

10001023123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10001023123 is a deficient number, since it is larger than the sum of its proper divisors (2307928525).

10001023123 is a wasteful number, since it uses less digits than its factorization.

10001023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109901373.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10001023123 its reverse (32132010001), we get a palindrome (42133033124).

The spelling of 10001023123 in words is "ten billion, one million, twenty-three thousand, one hundred twenty-three".