21532300130 has 32 divisors (see below), whose sum is σ = 44768764800. Its totient is φ = 7369342720.

The previous prime is 21532300121. The next prime is 21532300157. The reversal of 21532300130 is 3100323512.

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, 5755430 + ... + 5759169.

It is an arithmetic number, because the mean of its divisors is an integer number (1399023900).

Almost surely, 2^21532300130 is an apocalyptic number.

21532300130 is an abundant number, since it is smaller than the sum of its proper divisors (23236464670).

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

21532300130 is a wasteful number, since it uses less digits than its factorization.

21532300130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514634.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 21532300130 its reverse (3100323512), we get a palindrome (24632623642).

The spelling of 21532300130 in words is "twenty-one billion, five hundred thirty-two million, three hundred thousand, one hundred thirty".