10123009994 has 16 divisors (see below), whose sum is σ = 15211906920. Its totient is φ = 5052384960.

The previous prime is 10123009969. The next prime is 10123009999. The reversal of 10123009994 is 49990032101.

It can be written as a sum of positive squares in 4 ways, for example, as 10053070225 + 69939769 = 100265^2 + 8363^2 .

It is not an unprimeable number, because it can be changed into a prime (10123009999) 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 7 ways as a sum of consecutive naturals, for example, 4573232 + ... + 4575444.

Almost surely, 2^10123009994 is an apocalyptic number.

10123009994 is a deficient number, since it is larger than the sum of its proper divisors (5088896926).

10123009994 is a wasteful number, since it uses less digits than its factorization.

10123009994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 10123009994 in words is "ten billion, one hundred twenty-three million, nine thousand, nine hundred ninety-four".