99030777923 has 32 divisors (see below), whose sum is σ = 125765291520. Its totient is φ = 75743631360.

The previous prime is 99030777917. The next prime is 99030777941. The reversal of 99030777923 is 32977703099.

It is a cyclic number.

It is not a de Polignac number, because 99030777923 - 2¹⁴ = 99030761539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99030777953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 842915 + ... + 953187.

It is an arithmetic number, because the mean of its divisors is an integer number (3930165360).

Almost surely, 2^99030777923 is an apocalyptic number.

99030777923 is a deficient number, since it is larger than the sum of its proper divisors (26734513597).

99030777923 is a wasteful number, since it uses less digits than its factorization.

99030777923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110507.

The product of its (nonzero) digits is 4500846, while the sum is 56.

The spelling of 99030777923 in words is "ninety-nine billion, thirty million, seven hundred seventy-seven thousand, nine hundred twenty-three".