3130121333 has 4 divisors (see below), whose sum is σ = 3137093100. Its totient is φ = 3123149568.

The previous prime is 3130121303. The next prime is 3130121339. The reversal of 3130121333 is 3331210313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2385540964 + 744580369 = 48842^2 + 27287^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130121333 - 2⁸ = 3130121077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130121339) 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, 3485210 + ... + 3486107.

It is an arithmetic number, because the mean of its divisors is an integer number (784273275).

Almost surely, 2^3130121333 is an apocalyptic number.

It is an amenable number.

3130121333 is a deficient number, since it is larger than the sum of its proper divisors (6971767).

3130121333 is an equidigital number, since it uses as much as digits as its factorization.

3130121333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971766.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3130121333 is about 55947.4872804847. The cubic root of 3130121333 is about 1462.8070928702.

Adding to 3130121333 its reverse (3331210313), we get a palindrome (6461331646).

The spelling of 3130121333 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, three hundred thirty-three".