21710383134 has 24 divisors (see below), whose sum is σ = 47726959560. Its totient is φ = 6578903760.

The previous prime is 21710383127. The next prime is 21710383147. The reversal of 21710383134 is 43138301712.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 21710383095 and 21710383104.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 14951329 + ... + 14952780.

It is an arithmetic number, because the mean of its divisors is an integer number (1988623315).

Almost surely, 2^21710383134 is an apocalyptic number.

21710383134 is an abundant number, since it is smaller than the sum of its proper divisors (26016576426).

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

21710383134 is a wasteful number, since it uses less digits than its factorization.

21710383134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29904136 (or 29904125 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

Adding to 21710383134 its reverse (43138301712), we get a palindrome (64848684846).

The spelling of 21710383134 in words is "twenty-one billion, seven hundred ten million, three hundred eighty-three thousand, one hundred thirty-four".