2171115343 has 4 divisors (see below), whose sum is σ = 2172151800. Its totient is φ = 2170078888.

The previous prime is 2171115329. The next prime is 2171115347. The reversal of 2171115343 is 3435111712.

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

It is a cyclic number.

It is not a de Polignac number, because 2171115343 - 2²⁹ = 1634244431 is a prime.

It is a super-2 number, since 2×2171115343² = 9427483665220015298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171115347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515080 + ... + 519277.

It is an arithmetic number, because the mean of its divisors is an integer number (543037950).

Almost surely, 2^2171115343 is an apocalyptic number.

2171115343 is a deficient number, since it is larger than the sum of its proper divisors (1036457).

2171115343 is a wasteful number, since it uses less digits than its factorization.

2171115343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036456.

The product of its digits is 2520, while the sum is 28.

The square root of 2171115343 is about 46595.2287578889. The cubic root of 2171115343 is about 1294.8743621746.

The spelling of 2171115343 in words is "two billion, one hundred seventy-one million, one hundred fifteen thousand, three hundred forty-three".