21011230013310 has 48 divisors (see below), whose sum is σ = 54857772141120. Its totient is φ = 5579551172160.

The previous prime is 21011230013287. The next prime is 21011230013327. The reversal of 21011230013310 is 1331003211012.

21011230013310 is a `hidden beast` number, since 2 + 101 + 1 + 230 + 0 + 1 + 331 + 0 = 666.

21011230013310 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21011230013310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488384581 + ... + 488427600.

It is an arithmetic number, because the mean of its divisors is an integer number (1142870252940).

Almost surely, 2^{21011230013310} is an apocalyptic number.

21011230013310 is an abundant number, since it is smaller than the sum of its proper divisors (33846542127810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21011230013310 is a wasteful number, since it uses less digits than its factorization.

21011230013310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976812433 (or 976812430 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21011230013310 its reverse (1331003211012), we get a palindrome (22342233224322).

The spelling of 21011230013310 in words is "twenty-one trillion, eleven billion, two hundred thirty million, thirteen thousand, three hundred ten".