21142020130 has 64 divisors (see below), whose sum is σ = 47470821120. Its totient is φ = 6586272000.

The previous prime is 21142020127. The next prime is 21142020161. The reversal of 21142020130 is 3102024112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1741080 + ... + 1753180.

It is an arithmetic number, because the mean of its divisors is an integer number (741731580).

Almost surely, 2^21142020130 is an apocalyptic number.

21142020130 is an abundant number, since it is smaller than the sum of its proper divisors (26328800990).

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

21142020130 is a wasteful number, since it uses less digits than its factorization.

21142020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14395.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21142020130 its reverse (3102024112), we get a palindrome (24244044242).

The spelling of 21142020130 in words is "twenty-one billion, one hundred forty-two million, twenty thousand, one hundred thirty".