10030012123 has 4 divisors (see below), whose sum is σ = 10375874640. Its totient is φ = 9684149608.

The previous prime is 10030012103. The next prime is 10030012127. The reversal of 10030012123 is 32121003001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10030012123 is a prime.

It is a super-2 number, since 2×10030012123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10030012127) 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, 172931215 + ... + 172931272.

It is an arithmetic number, because the mean of its divisors is an integer number (2593968660).

Almost surely, 2^10030012123 is an apocalyptic number.

10030012123 is a deficient number, since it is larger than the sum of its proper divisors (345862517).

10030012123 is an equidigital number, since it uses as much as digits as its factorization.

10030012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345862516.

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

Adding to 10030012123 its reverse (32121003001), we get a palindrome (42151015124).

The spelling of 10030012123 in words is "ten billion, thirty million, twelve thousand, one hundred twenty-three".