3161120213 has 8 divisors (see below), whose sum is σ = 3239089560. Its totient is φ = 3083192320.

The previous prime is 3161120203. The next prime is 3161120257. The reversal of 3161120213 is 3120211613.

It can be written as a sum of positive squares in 4 ways, for example, as 279792529 + 2881327684 = 16727^2 + 53678^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3161120213 - 2⁸ = 3161119957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161120203) 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, 192053 + ... + 207861.

It is an arithmetic number, because the mean of its divisors is an integer number (404886195).

Almost surely, 2^3161120213 is an apocalyptic number.

It is an amenable number.

3161120213 is a deficient number, since it is larger than the sum of its proper divisors (77969347).

3161120213 is a wasteful number, since it uses less digits than its factorization.

3161120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20727.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3161120213 is about 56223.8402548243. The cubic root of 3161120213 is about 1467.6201659738.

Adding to 3161120213 its reverse (3120211613), we get a palindrome (6281331826).

The spelling of 3161120213 in words is "three billion, one hundred sixty-one million, one hundred twenty thousand, two hundred thirteen".