21033321130 has 32 divisors (see below), whose sum is σ = 39099271680. Its totient is φ = 8138180160.

The previous prime is 21033321107. The next prime is 21033321131. The reversal of 21033321130 is 3112333012.

It is a junction number, because it is equal to n+sod(n) for n = 21033321098 and 21033321107.

It is not an unprimeable number, because it can be changed into a prime (21033321131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713116 + ... + 742024.

It is an arithmetic number, because the mean of its divisors is an integer number (1221852240).

Almost surely, 2^21033321130 is an apocalyptic number.

21033321130 is a deficient number, since it is larger than the sum of its proper divisors (18065950550).

21033321130 is a wasteful number, since it uses less digits than its factorization.

21033321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31294.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21033321130 its reverse (3112333012), we get a palindrome (24145654142).

It can be divided in two parts, 2103 and 3321130, that added together give a palindrome (3323233).

The spelling of 21033321130 in words is "twenty-one billion, thirty-three million, three hundred twenty-one thousand, one hundred thirty".