21020213112301 has 8 divisors (see below), whose sum is σ = 23968749793464. Its totient is φ = 18261904604160.

The previous prime is 21020213112287. The next prime is 21020213112307. The reversal of 21020213112301 is 10321131202012.

It can be written as a sum of positive squares in 4 ways, for example, as 8592367263076 + 12427845849225 = 2931274^2 + 3525315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21020213112301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020213112307) 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, 47557043020 + ... + 47557043461.

It is an arithmetic number, because the mean of its divisors is an integer number (2996093724183).

Almost surely, 2^{21020213112301} is an apocalyptic number.

It is an amenable number.

21020213112301 is a deficient number, since it is larger than the sum of its proper divisors (2948536681163).

21020213112301 is a wasteful number, since it uses less digits than its factorization.

21020213112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95114086511.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21020213112301 its reverse (10321131202012), we get a palindrome (31341344314313).

The spelling of 21020213112301 in words is "twenty-one trillion, twenty billion, two hundred thirteen million, one hundred twelve thousand, three hundred one".