2171023118 has 24 divisors (see below), whose sum is σ = 3613944600. Its totient is φ = 970068560.

The previous prime is 2171023117. The next prime is 2171023121. The reversal of 2171023118 is 8113201712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171023117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62408 + ... + 90756.

It is an arithmetic number, because the mean of its divisors is an integer number (150581025).

Almost surely, 2^2171023118 is an apocalyptic number.

2171023118 is a deficient number, since it is larger than the sum of its proper divisors (1442921482).

2171023118 is a wasteful number, since it uses less digits than its factorization.

2171023118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28480 (or 28421 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 2171023118 is about 46594.2391074261. The cubic root of 2171023118 is about 1294.8560272853.

The spelling of 2171023118 in words is "two billion, one hundred seventy-one million, twenty-three thousand, one hundred eighteen".