21030113030 has 8 divisors (see below), whose sum is σ = 37854203472.
Its totient is φ = 8412045208.
The previous prime is 21030113029. The next prime is 21030113057. The reversal of 21030113030 is 3031103012.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 21030112996 and 21030113014.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051505642 + ... + 1051505661.
It is an arithmetic number, because the mean of its divisors is an integer number (4731775434).
Almost surely, 221030113030 is an apocalyptic number.
21030113030 is a deficient number, since it is larger than the sum of its proper divisors (16824090442).
21030113030 is a wasteful number, since it uses less digits than its factorization.
21030113030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2103011310.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 21030113030 its reverse (3031103012), we get a palindrome (24061216042).
The spelling of 21030113030 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, thirty".