3112121 has 4 divisors (see below), whose sum is σ = 3212544. Its totient is φ = 3011700.

The previous prime is 3112117. The next prime is 3112127. The reversal of 3112121 is 1212113.

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 a cyclic number.

It is not a de Polignac number, because 3112121 - 2² = 3112117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3112127) 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, 50165 + ... + 50226.

It is an arithmetic number, because the mean of its divisors is an integer number (803136).

Almost surely, 2^3112121 is an apocalyptic number.

3112121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3112121 is a deficient number, since it is larger than the sum of its proper divisors (100423).

3112121 is a wasteful number, since it uses less digits than its factorization.

3112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100422.

The product of its digits is 12, while the sum is 11.

The square root of 3112121 is about 1764.1204607396. The cubic root of 3112121 is about 145.9997654340. Note that the first 3 decimals are identical.

Adding to 3112121 its reverse (1212113), we get a palindrome (4324234).

The spelling of 3112121 in words is "three million, one hundred twelve thousand, one hundred twenty-one".