21310130133011 has 4 divisors (see below), whose sum is σ = 21311140065024. Its totient is φ = 21309120201000.

The previous prime is 21310130132981. The next prime is 21310130133077. The reversal of 21310130133011 is 11033103101312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21310130133011 - 2²⁶ = 21310063024147 is a prime.

It is a super-2 number, since 2×21310130133011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21310130133511) 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, 504934355 + ... + 504976556.

It is an arithmetic number, because the mean of its divisors is an integer number (5327785016256).

Almost surely, 2^{21310130133011} is an apocalyptic number.

21310130133011 is a deficient number, since it is larger than the sum of its proper divisors (1009932013).

21310130133011 is a wasteful number, since it uses less digits than its factorization.

21310130133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009932012.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 21310130133011 its reverse (11033103101312), we get a palindrome (32343233234323).

The spelling of 21310130133011 in words is "twenty-one trillion, three hundred ten billion, one hundred thirty million, one hundred thirty-three thousand, eleven".