990107753123 has 4 divisors (see below), whose sum is σ = 993788451360. Its totient is φ = 986427054888.

The previous prime is 990107753099. The next prime is 990107753189. The reversal of 990107753123 is 321357701099.

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

It is a cyclic number.

It is not a de Polignac number, because 990107753123 - 2¹² = 990107749027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990107753023) 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 3 ways as a sum of consecutive naturals, for example, 1840348715 + ... + 1840349252.

It is an arithmetic number, because the mean of its divisors is an integer number (248447112840).

Almost surely, 2^990107753123 is an apocalyptic number.

990107753123 is a deficient number, since it is larger than the sum of its proper divisors (3680698237).

990107753123 is a wasteful number, since it uses less digits than its factorization.

990107753123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680698236.

The product of its (nonzero) digits is 357210, while the sum is 47.

The spelling of 990107753123 in words is "nine hundred ninety billion, one hundred seven million, seven hundred fifty-three thousand, one hundred twenty-three".