21330211020131 has 16 divisors (see below), whose sum is σ = 23182193015520. Its totient is φ = 19508407027200.

The previous prime is 21330211020091. The next prime is 21330211020163. The reversal of 21330211020131 is 13102011203312.

It is a happy number.

It is not a de Polignac number, because 21330211020131 - 2²⁶ = 21330143911267 is a prime.

It is a super-2 number, since 2×21330211020131² (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 (21330211025131) 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, 93196571 + ... + 93425163.

It is an arithmetic number, because the mean of its divisors is an integer number (1448887063470).

Almost surely, 2^{21330211020131} is an apocalyptic number.

21330211020131 is a deficient number, since it is larger than the sum of its proper divisors (1851981995389).

21330211020131 is a wasteful number, since it uses less digits than its factorization.

21330211020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294566.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21330211020131 its reverse (13102011203312), we get a palindrome (34432222223443).

The spelling of 21330211020131 in words is "twenty-one trillion, three hundred thirty billion, two hundred eleven million, twenty thousand, one hundred thirty-one".