3161204121 has 4 divisors (see below), whose sum is σ = 4214938832. Its totient is φ = 2107469412.

The previous prime is 3161204093. The next prime is 3161204149. The reversal of 3161204121 is 1214021613.

3161204121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3161204093) and next prime (3161204149).

It is not a de Polignac number, because 3161204121 - 2⁷ = 3161203993 is a prime.

It is a super-2 number, since 2×3161204121² = 19986422989254765282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3161204521) 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, 526867351 + ... + 526867356.

It is an arithmetic number, because the mean of its divisors is an integer number (1053734708).

Almost surely, 2^3161204121 is an apocalyptic number.

It is an amenable number.

3161204121 is a deficient number, since it is larger than the sum of its proper divisors (1053734711).

3161204121 is a wasteful number, since it uses less digits than its factorization.

3161204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053734710.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 3161204121 is about 56224.5864457890. The cubic root of 3161204121 is about 1467.6331512422.

Adding to 3161204121 its reverse (1214021613), we get a palindrome (4375225734).

The spelling of 3161204121 in words is "three billion, one hundred sixty-one million, two hundred four thousand, one hundred twenty-one".