3123020099 has 4 divisors (see below), whose sum is σ = 3130134480. Its totient is φ = 3115905720.

The previous prime is 3123020093. The next prime is 3123020107. The reversal of 3123020099 is 9900203213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9900203213 = 19 ⋅521063327.

It is a cyclic number.

It is not a de Polignac number, because 3123020099 - 2⁴ = 3123020083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123020093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556532 + ... + 3557409.

It is an arithmetic number, because the mean of its divisors is an integer number (782533620).

Almost surely, 2^3123020099 is an apocalyptic number.

3123020099 is a deficient number, since it is larger than the sum of its proper divisors (7114381).

3123020099 is an equidigital number, since it uses as much as digits as its factorization.

3123020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114380.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3123020099 is about 55883.9878587776. The cubic root of 3123020099 is about 1461.7000430421.

The spelling of 3123020099 in words is "three billion, one hundred twenty-three million, twenty thousand, ninety-nine".