21424023010 has 64 divisors (see below), whose sum is σ = 41944863744. Its totient is φ = 7831641600.

The previous prime is 21424022953. The next prime is 21424023011. The reversal of 21424023010 is 1032042412.

It is not an unprimeable number, because it can be changed into a prime (21424023011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7674715 + ... + 7677505.

It is an arithmetic number, because the mean of its divisors is an integer number (655388496).

Almost surely, 2^21424023010 is an apocalyptic number.

21424023010 is a deficient number, since it is larger than the sum of its proper divisors (20520840734).

21424023010 is a wasteful number, since it uses less digits than its factorization.

21424023010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21424023010 its reverse (1032042412), we get a palindrome (22456065422).

It can be divided in two parts, 2142402 and 3010, that added together give a palindrome (2145412).

The spelling of 21424023010 in words is "twenty-one billion, four hundred twenty-four million, twenty-three thousand, ten".