21332013030 has 24 divisors (see below), whose sum is σ = 55463234112. Its totient is φ = 5688536784.

The previous prime is 21332013023. The next prime is 21332013047. The reversal of 21332013030 is 3031023312.

21332013030 is a `hidden beast` number, since 213 + 320 + 130 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21332012994 and 21332013012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118511094 + ... + 118511273.

It is an arithmetic number, because the mean of its divisors is an integer number (2310968088).

Almost surely, 2^21332013030 is an apocalyptic number.

21332013030 is an abundant number, since it is smaller than the sum of its proper divisors (34131221082).

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

21332013030 is a wasteful number, since it uses less digits than its factorization.

21332013030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237022380 (or 237022377 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21332013030 its reverse (3031023312), we get a palindrome (24363036342).

The spelling of 21332013030 in words is "twenty-one billion, three hundred thirty-two million, thirteen thousand, thirty".