21430231130 has 64 divisors (see below), whose sum is σ = 48751711488. Its totient is φ = 6588034560.

The previous prime is 21430231073. The next prime is 21430231177. The reversal of 21430231130 is 3113203412.

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 31 ways as a sum of consecutive naturals, for example, 134417 + ... + 246836.

It is an arithmetic number, because the mean of its divisors is an integer number (761745492).

Almost surely, 2^21430231130 is an apocalyptic number.

21430231130 is an abundant number, since it is smaller than the sum of its proper divisors (27321480358).

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

21430231130 is a wasteful number, since it uses less digits than its factorization.

21430231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381351.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21430231130 its reverse (3113203412), we get a palindrome (24543434542).

The spelling of 21430231130 in words is "twenty-one billion, four hundred thirty million, two hundred thirty-one thousand, one hundred thirty".