21113001302001 has 16 divisors (see below), whose sum is σ = 32174785507200. Its totient is φ = 12063599779968.

The previous prime is 21113001301967. The next prime is 21113001302011. The reversal of 21113001302001 is 10020310031112.

It is a happy number.

It is not a de Polignac number, because 21113001302001 - 2¹⁰ = 21113001300977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21113001302011) 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, 40249566 + ... + 40770743.

It is an arithmetic number, because the mean of its divisors is an integer number (2010924094200).

Almost surely, 2^{21113001302001} is an apocalyptic number.

21113001302001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21113001302001 is a deficient number, since it is larger than the sum of its proper divisors (11061784205199).

21113001302001 is a wasteful number, since it uses less digits than its factorization.

21113001302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81032728.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21113001302001 its reverse (10020310031112), we get a palindrome (31133311333113).

The spelling of 21113001302001 in words is "twenty-one trillion, one hundred thirteen billion, one million, three hundred two thousand, one".