21335547030 has 32 divisors (see below), whose sum is σ = 58520358144. Its totient is φ = 4876696416.

The previous prime is 21335547007. The next prime is 21335547083. The reversal of 21335547030 is 3074553312.

It is a junction number, because it is equal to n+sod(n) for n = 21335546982 and 21335547000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50798712 + ... + 50799131.

It is an arithmetic number, because the mean of its divisors is an integer number (1828761192).

Almost surely, 2^21335547030 is an apocalyptic number.

21335547030 is an abundant number, since it is smaller than the sum of its proper divisors (37184811114).

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

21335547030 is a wasteful number, since it uses less digits than its factorization.

21335547030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101597860.

The product of its (nonzero) digits is 37800, while the sum is 33.

The spelling of 21335547030 in words is "twenty-one billion, three hundred thirty-five million, five hundred forty-seven thousand, thirty".