3130012021 has 8 divisors (see below), whose sum is σ = 3282301080. Its totient is φ = 2980680192.

The previous prime is 3130012019. The next prime is 3130012027. The reversal of 3130012021 is 1202100313.

It can be written as a sum of positive squares in 4 ways, for example, as 351562500 + 2778449521 = 18750^2 + 52711^2 .

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 3130012021 - 2¹ = 3130012019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130011992 and 3130012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130012027) 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, 737140 + ... + 741373.

It is an arithmetic number, because the mean of its divisors is an integer number (410287635).

Almost surely, 2^3130012021 is an apocalyptic number.

It is an amenable number.

3130012021 is a deficient number, since it is larger than the sum of its proper divisors (152289059).

3130012021 is a wasteful number, since it uses less digits than its factorization.

3130012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478615.

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

The square root of 3130012021 is about 55946.5103558747. The cubic root of 3130012021 is about 1462.7900643258.

Adding to 3130012021 its reverse (1202100313), we get a palindrome (4332112334).

The spelling of 3130012021 in words is "three billion, one hundred thirty million, twelve thousand, twenty-one".