21002110101301 has 16 divisors (see below), whose sum is σ = 25442338432896. Its totient is φ = 16924198519296.

The previous prime is 21002110101299. The next prime is 21002110101307. The reversal of 21002110101301 is 10310101120012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21002110101301 - 2¹ = 21002110101299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002110101307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97184416 + ... + 97400281.

It is an arithmetic number, because the mean of its divisors is an integer number (1590146152056).

Almost surely, 2^{21002110101301} is an apocalyptic number.

It is an amenable number.

21002110101301 is a deficient number, since it is larger than the sum of its proper divisors (4440228331595).

21002110101301 is a wasteful number, since it uses less digits than its factorization.

21002110101301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194585628.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 21002110101301 its reverse (10310101120012), we get a palindrome (31312211221313).

The spelling of 21002110101301 in words is "twenty-one trillion, two billion, one hundred ten million, one hundred one thousand, three hundred one".