1680941121 has 8 divisors (see below), whose sum is σ = 2242605984. Its totient is φ = 1119951840.

The previous prime is 1680941069. The next prime is 1680941159. The reversal of 1680941121 is 1211490861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1680941121 - 2¹⁰ = 1680940097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680941021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163060 + ... + 173061.

It is an arithmetic number, because the mean of its divisors is an integer number (280325748).

Almost surely, 2^1680941121 is an apocalyptic number.

It is an amenable number.

1680941121 is a deficient number, since it is larger than the sum of its proper divisors (561664863).

1680941121 is a wasteful number, since it uses less digits than its factorization.

1680941121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337791.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1680941121 is about 40999.2819571270. The cubic root of 1680941121 is about 1189.0063312485.

The spelling of 1680941121 in words is "one billion, six hundred eighty million, nine hundred forty-one thousand, one hundred twenty-one".