21323323221030 has 64 divisors (see below), whose sum is σ = 59334464632320. Its totient is φ = 5438992588128.

The previous prime is 21323323220977. The next prime is 21323323221059. The reversal of 21323323221030 is 3012232332312.

21323323221030 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 332 + 322 + 1 + 0 + 3 + 0 = 666.

It is a super-2 number, since 2×21323323221030² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21323323220985 and 21323323221003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1716847512 + ... + 1716859931.

It is an arithmetic number, because the mean of its divisors is an integer number (927101009880).

Almost surely, 2^{21323323221030} is an apocalyptic number.

21323323221030 is an abundant number, since it is smaller than the sum of its proper divisors (38011141411290).

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

21323323221030 is a wasteful number, since it uses less digits than its factorization.

21323323221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433707482 (or 3433707476 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21323323221030 its reverse (3012232332312), we get a palindrome (24335555553342).

The spelling of 21323323221030 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred twenty-three million, two hundred twenty-one thousand, thirty".