3161204120 has 32 divisors (see below), whose sum is σ = 7122805200. Its totient is φ = 1262686848.

The previous prime is 3161204093. The next prime is 3161204149. The reversal of 3161204120 is 214021613.

It is a super-2 number, since 2×3161204120² = 19986422976609948800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3161204092 and 3161204101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27374 + ... + 84093.

Almost surely, 2^3161204120 is an apocalyptic number.

It is an amenable number.

3161204120 is an abundant number, since it is smaller than the sum of its proper divisors (3961601080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161204120 is a wasteful number, since it uses less digits than its factorization.

3161204120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112187 (or 112183 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3161204120 is about 56224.5864368961. The cubic root of 3161204120 is about 1467.6331510875.

Adding to 3161204120 its reverse (214021613), we get a palindrome (3375225733).

The spelling of 3161204120 in words is "three billion, one hundred sixty-one million, two hundred four thousand, one hundred twenty".