21323310011330 has 16 divisors (see below), whose sum is σ = 38480626299960. Its totient is φ = 8507397720192.

The previous prime is 21323310011329. The next prime is 21323310011389. The reversal of 21323310011330 is 3311001332312.

It can be written as a sum of positive squares in 4 ways, for example, as 14310627477721 + 7012682533609 = 3782939^2 + 2648147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21323310011296 and 21323310011305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740781459 + ... + 2740789238.

Almost surely, 2^{21323310011330} is an apocalyptic number.

21323310011330 is a deficient number, since it is larger than the sum of its proper divisors (17157316288630).

21323310011330 is a wasteful number, since it uses less digits than its factorization.

21323310011330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481571093.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21323310011330 its reverse (3311001332312), we get a palindrome (24634311343642).

The spelling of 21323310011330 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred ten million, eleven thousand, three hundred thirty".