10012002123 has 4 divisors (see below), whose sum is σ = 13349336168. Its totient is φ = 6674668080.

The previous prime is 10012002103. The next prime is 10012002127. The reversal of 10012002123 is 32120021001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32120021001 = 3 ⋅10706673667.

It is not a de Polignac number, because 10012002123 - 2¹² = 10011998027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012002099 and 10012002108.

It is not an unprimeable number, because it can be changed into a prime (10012002127) 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, 1668667018 + ... + 1668667023.

It is an arithmetic number, because the mean of its divisors is an integer number (3337334042).

Almost surely, 2^10012002123 is an apocalyptic number.

10012002123 is a deficient number, since it is larger than the sum of its proper divisors (3337334045).

10012002123 is an equidigital number, since it uses as much as digits as its factorization.

10012002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337334044.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10012002123 its reverse (32120021001), we get a palindrome (42132023124).

The spelling of 10012002123 in words is "ten billion, twelve million, two thousand, one hundred twenty-three".