21413023210 has 8 divisors (see below), whose sum is σ = 38543441796. Its totient is φ = 8565209280.

The previous prime is 21413023133. The next prime is 21413023211. The reversal of 21413023210 is 1232031412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21353100129 + 59923081 = 146127^2 + 7741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21413023211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1070651151 + ... + 1070651170.

Almost surely, 2^21413023210 is an apocalyptic number.

21413023210 is a deficient number, since it is larger than the sum of its proper divisors (17130418586).

21413023210 is a wasteful number, since it uses less digits than its factorization.

21413023210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141302328.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21413023210 its reverse (1232031412), we get a palindrome (22645054622).

The spelling of 21413023210 in words is "twenty-one billion, four hundred thirteen million, twenty-three thousand, two hundred ten".