21002110201301 has 4 divisors (see below), whose sum is σ = 21267959697600. Its totient is φ = 20736260705004.

The previous prime is 21002110201213. The next prime is 21002110201393. The reversal of 21002110201301 is 10310201120012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21002110201301 - 2²² = 21002106006997 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 (21002110201901) 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, 132924748031 + ... + 132924748188.

It is an arithmetic number, because the mean of its divisors is an integer number (5316989924400).

Almost surely, 2^{21002110201301} is an apocalyptic number.

It is an amenable number.

21002110201301 is a deficient number, since it is larger than the sum of its proper divisors (265849496299).

21002110201301 is an equidigital number, since it uses as much as digits as its factorization.

21002110201301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265849496298.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21002110201301 its reverse (10310201120012), we get a palindrome (31312311321313).

The spelling of 21002110201301 in words is "twenty-one trillion, two billion, one hundred ten million, two hundred one thousand, three hundred one".