21020212313301 has 16 divisors (see below), whose sum is σ = 29676776969088. Its totient is φ = 13188626995200.

The previous prime is 21020212313257. The next prime is 21020212313311. The reversal of 21020212313301 is 10331321202012.

It is not a de Polignac number, because 21020212313301 - 2⁷ = 21020212313173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020212313311) 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 15 ways as a sum of consecutive naturals, for example, 6922345 + ... + 9484686.

It is an arithmetic number, because the mean of its divisors is an integer number (1854798560568).

Almost surely, 2^{21020212313301} is an apocalyptic number.

It is an amenable number.

21020212313301 is a deficient number, since it is larger than the sum of its proper divisors (8656564655787).

21020212313301 is a wasteful number, since it uses less digits than its factorization.

21020212313301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16432172.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21020212313301 its reverse (10331321202012), we get a palindrome (31351533515313).

The spelling of 21020212313301 in words is "twenty-one trillion, twenty billion, two hundred twelve million, three hundred thirteen thousand, three hundred one".