21214050313530 has 64 divisors (see below), whose sum is σ = 53663083689600. Its totient is φ = 5352369684480.

The previous prime is 21214050313523. The next prime is 21214050313567. The reversal of 21214050313530 is 3531305041212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23760391 + ... + 24637050.

It is an arithmetic number, because the mean of its divisors is an integer number (838485682650).

Almost surely, 2^{21214050313530} is an apocalyptic number.

21214050313530 is an abundant number, since it is smaller than the sum of its proper divisors (32449033376070).

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

21214050313530 is a wasteful number, since it uses less digits than its factorization.

21214050313530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48398239.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 21214050313530 its reverse (3531305041212), we get a palindrome (24745355354742).

The spelling of 21214050313530 in words is "twenty-one trillion, two hundred fourteen billion, fifty million, three hundred thirteen thousand, five hundred thirty".