21202434130 has 32 divisors (see below), whose sum is σ = 38587824576. Its totient is φ = 8387150784.

The previous prime is 21202434067. The next prime is 21202434173. The reversal of 21202434130 is 3143420212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611212 + ... + 644968.

It is an arithmetic number, because the mean of its divisors is an integer number (1205869518).

Almost surely, 2^21202434130 is an apocalyptic number.

21202434130 is a deficient number, since it is larger than the sum of its proper divisors (17385390446).

21202434130 is a wasteful number, since it uses less digits than its factorization.

21202434130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34458.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21202434130 its reverse (3143420212), we get a palindrome (24345854342).

The spelling of 21202434130 in words is "twenty-one billion, two hundred two million, four hundred thirty-four thousand, one hundred thirty".