3681080121 has 8 divisors (see below), whose sum is σ = 5166428320. Its totient is φ = 2324892672.

The previous prime is 3681080119. The next prime is 3681080131. The reversal of 3681080121 is 1210801863.

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

It is not a de Polignac number, because 3681080121 - 2¹ = 3681080119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3681080101) 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, 32290120 + ... + 32290233.

It is an arithmetic number, because the mean of its divisors is an integer number (645803540).

Almost surely, 2^3681080121 is an apocalyptic number.

It is an amenable number.

3681080121 is a deficient number, since it is larger than the sum of its proper divisors (1485348199).

3681080121 is a wasteful number, since it uses less digits than its factorization.

3681080121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64580375.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 3681080121 is about 60671.9055329565. The cubic root of 3681080121 is about 1544.0395605909.

Adding to 3681080121 its reverse (1210801863), we get a palindrome (4891881984).

The spelling of 3681080121 in words is "three billion, six hundred eighty-one million, eighty thousand, one hundred twenty-one".