21310103302011 has 12 divisors (see below), whose sum is σ = 30781424058840. Its totient is φ = 14206659965280.

The previous prime is 21310103302009. The next prime is 21310103302021. The reversal of 21310103302011 is 11020330101312.

21310103302011 is a `hidden beast` number, since 2 + 1 + 310 + 1 + 0 + 330 + 20 + 1 + 1 = 666.

It is not a de Polignac number, because 21310103302011 - 2¹ = 21310103302009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21310103302021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4484005 + ... + 7920006.

It is an arithmetic number, because the mean of its divisors is an integer number (2565118671570).

Almost surely, 2^{21310103302011} is an apocalyptic number.

21310103302011 is a deficient number, since it is larger than the sum of its proper divisors (9471320756829).

21310103302011 is a wasteful number, since it uses less digits than its factorization.

21310103302011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594906 (or 12594903 counting only the distinct ones).

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

Adding to 21310103302011 its reverse (11020330101312), we get a palindrome (32330433403323).

The spelling of 21310103302011 in words is "twenty-one trillion, three hundred ten billion, one hundred three million, three hundred two thousand, eleven".