10213013002021 has 4 divisors (see below), whose sum is σ = 10489040380492. Its totient is φ = 9936985623552.

The previous prime is 10213013001929. The next prime is 10213013002043. The reversal of 10213013002021 is 12020031031201.

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 9052793193796 + 1160219808225 = 3008786^2 + 1077135^2 .

It is a cyclic number.

It is not a de Polignac number, because 10213013002021 - 2²¹ = 10213010904869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10213013001986 and 10213013002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213013002081) 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, 138013689180 + ... + 138013689253.

It is an arithmetic number, because the mean of its divisors is an integer number (2622260095123).

Almost surely, 2^{10213013002021} is an apocalyptic number.

It is an amenable number.

10213013002021 is a deficient number, since it is larger than the sum of its proper divisors (276027378471).

10213013002021 is an equidigital number, since it uses as much as digits as its factorization.

10213013002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276027378470.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10213013002021 its reverse (12020031031201), we get a palindrome (22233044033222).

The spelling of 10213013002021 in words is "ten trillion, two hundred thirteen billion, thirteen million, two thousand, twenty-one".