3123688899 has 4 divisors (see below), whose sum is σ = 4164918536. Its totient is φ = 2082459264.

The previous prime is 3123688877. The next prime is 3123688921. The reversal of 3123688899 is 9988863213.

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

It is an interprime number because it is at equal distance from previous prime (3123688877) and next prime (3123688921).

It is not a de Polignac number, because 3123688899 - 2⁸ = 3123688643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123688849) 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, 520614814 + ... + 520614819.

It is an arithmetic number, because the mean of its divisors is an integer number (1041229634).

Almost surely, 2^3123688899 is an apocalyptic number.

3123688899 is a deficient number, since it is larger than the sum of its proper divisors (1041229637).

3123688899 is a wasteful number, since it uses less digits than its factorization.

3123688899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041229636.

The product of its digits is 4478976, while the sum is 57.

The square root of 3123688899 is about 55889.9713633850. The cubic root of 3123688899 is about 1461.8043774345.

The spelling of 3123688899 in words is "three billion, one hundred twenty-three million, six hundred eighty-eight thousand, eight hundred ninety-nine".