10123011998 has 48 divisors (see below), whose sum is σ = 17921916144. Its totient is φ = 4238211840.

The previous prime is 10123011973. The next prime is 10123012007. The reversal of 10123011998 is 89911032101.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 820040 + ... + 832292.

It is an arithmetic number, because the mean of its divisors is an integer number (373373253).

Almost surely, 2^10123011998 is an apocalyptic number.

10123011998 is a deficient number, since it is larger than the sum of its proper divisors (7798904146).

10123011998 is a wasteful number, since it uses less digits than its factorization.

10123011998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12377 (or 12330 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 10123011998 in words is "ten billion, one hundred twenty-three million, eleven thousand, nine hundred ninety-eight".