3121013 has 8 divisors (see below), whose sum is σ = 3776832. Its totient is φ = 2517696.

The previous prime is 3121007. The next prime is 3121033. The reversal of 3121013 is 3101213.

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 3121013 - 2⁸ = 3120757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120985 and 3121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121033) 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, 12995 + ... + 13232.

It is an arithmetic number, because the mean of its divisors is an integer number (472104).

Almost surely, 2^3121013 is an apocalyptic number.

It is an amenable number.

3121013 is a deficient number, since it is larger than the sum of its proper divisors (655819).

3121013 is a wasteful number, since it uses less digits than its factorization.

3121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 3121013 is about 1766.6388991529. The cubic root of 3121013 is about 146.1386841364.

Adding to 3121013 its reverse (3101213), we get a palindrome (6222226).

The spelling of 3121013 in words is "three million, one hundred twenty-one thousand, thirteen".