21130333333323 has 32 divisors (see below), whose sum is σ = 30288283603200. Its totient is φ = 13062421696896.

The previous prime is 21130333333267. The next prime is 21130333333327. The reversal of 21130333333323 is 32333333303112.

It is a happy number.

It is not a de Polignac number, because 21130333333323 - 2¹⁰ = 21130333332299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21130333333327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7080840 + ... + 9612437.

It is an arithmetic number, because the mean of its divisors is an integer number (946508862600).

Almost surely, 2^{21130333333323} is an apocalyptic number.

21130333333323 is a deficient number, since it is larger than the sum of its proper divisors (9157950269877).

21130333333323 is a wasteful number, since it uses less digits than its factorization.

21130333333323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16693771.

The product of its (nonzero) digits is 78732, while the sum is 33.

Adding to 21130333333323 its reverse (32333333303112), we get a palindrome (53463666636435).

The spelling of 21130333333323 in words is "twenty-one trillion, one hundred thirty billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred twenty-three".