2123019717 has 48 divisors (see below), whose sum is σ = 3660636672. Its totient is φ = 1083680640.

The previous prime is 2123019713. The next prime is 2123019719. The reversal of 2123019717 is 7179103212.

It is not a de Polignac number, because 2123019717 - 2² = 2123019713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123019713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41323 + ... + 77159.

It is an arithmetic number, because the mean of its divisors is an integer number (76263264).

Almost surely, 2^2123019717 is an apocalyptic number.

It is an amenable number.

2123019717 is a deficient number, since it is larger than the sum of its proper divisors (1537616955).

2123019717 is a wasteful number, since it uses less digits than its factorization.

2123019717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35898 (or 35891 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 2123019717 is about 46076.2380951397. The cubic root of 2123019717 is about 1285.2413092318.

The spelling of 2123019717 in words is "two billion, one hundred twenty-three million, nineteen thousand, seven hundred seventeen".