3120003121 has 4 divisors (see below), whose sum is σ = 3120671232. Its totient is φ = 3119335012.

The previous prime is 3120003119. The next prime is 3120003127. The reversal of 3120003121 is 1213000213.

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 3120003121 - 2¹ = 3120003119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120003127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327001 + ... + 336406.

It is an arithmetic number, because the mean of its divisors is an integer number (780167808).

Almost surely, 2^3120003121 is an apocalyptic number.

It is an amenable number.

3120003121 is a deficient number, since it is larger than the sum of its proper divisors (668111).

3120003121 is an equidigital number, since it uses as much as digits as its factorization.

3120003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668110.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3120003121 is about 55856.9881125003. The cubic root of 3120003121 is about 1461.2292020448.

Adding to 3120003121 its reverse (1213000213), we get a palindrome (4333003334).

The spelling of 3120003121 in words is "three billion, one hundred twenty million, three thousand, one hundred twenty-one".