21133012030 has 64 divisors (see below), whose sum is σ = 43385061888. Its totient is φ = 7352231040.

The previous prime is 21133012003. The next prime is 21133012031. The reversal of 21133012030 is 3021033112.

It is a junction number, because it is equal to n+sod(n) for n = 21133011995 and 21133012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133012031) 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 31 ways as a sum of consecutive naturals, for example, 147585 + ... + 253075.

It is an arithmetic number, because the mean of its divisors is an integer number (677891592).

Almost surely, 2^21133012030 is an apocalyptic number.

21133012030 is an abundant number, since it is smaller than the sum of its proper divisors (22252049858).

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

21133012030 is a wasteful number, since it uses less digits than its factorization.

21133012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105601.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21133012030 its reverse (3021033112), we get a palindrome (24154045142).

The spelling of 21133012030 in words is "twenty-one billion, one hundred thirty-three million, twelve thousand, thirty".