201312010021 has 8 divisors (see below), whose sum is σ = 208280458080. Its totient is φ = 194345338992.

The previous prime is 201312010013. The next prime is 201312010037. The reversal of 201312010021 is 120010213102.

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 201312010021 - 2³ = 201312010013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201312009983 and 201312010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312016021) 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 7 ways as a sum of consecutive naturals, for example, 211695 + ... + 668908.

It is an arithmetic number, because the mean of its divisors is an integer number (26035057260).

Almost surely, 2^201312010021 is an apocalyptic number.

It is an amenable number.

201312010021 is a deficient number, since it is larger than the sum of its proper divisors (6968448059).

201312010021 is an equidigital number, since it uses as much as digits as its factorization.

201312010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888515.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201312010021 its reverse (120010213102), we get a palindrome (321322223123).

The spelling of 201312010021 in words is "two hundred one billion, three hundred twelve million, ten thousand, twenty-one".