3130212133021 has 4 divisors (see below), whose sum is σ = 3143646520092. Its totient is φ = 3116777745952.

The previous prime is 3130212132991. The next prime is 3130212133049. The reversal of 3130212133021 is 1203312120313.

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 2021643204025 + 1108568928996 = 1421845^2 + 1052886^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130212133021 - 2¹¹ = 3130212130973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130212132983 and 3130212133001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130212133121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6717193186 + ... + 6717193651.

It is an arithmetic number, because the mean of its divisors is an integer number (785911630023).

Almost surely, 2^{3130212133021} is an apocalyptic number.

It is an amenable number.

3130212133021 is a deficient number, since it is larger than the sum of its proper divisors (13434387071).

3130212133021 is a wasteful number, since it uses less digits than its factorization.

3130212133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13434387070.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3130212133021 its reverse (1203312120313), we get a palindrome (4333524253334).

The spelling of 3130212133021 in words is "three trillion, one hundred thirty billion, two hundred twelve million, one hundred thirty-three thousand, twenty-one".