21024413342 has 16 divisors (see below), whose sum is σ = 32563468800. Its totient is φ = 10170122520.

The previous prime is 21024413341. The next prime is 21024413357. The reversal of 21024413342 is 24331442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21024413341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171509 + ... + 267327.

It is an arithmetic number, because the mean of its divisors is an integer number (2035216800).

Almost surely, 2^21024413342 is an apocalyptic number.

21024413342 is a deficient number, since it is larger than the sum of its proper divisors (11539055458).

21024413342 is a wasteful number, since it uses less digits than its factorization.

21024413342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99391.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21024413342 its reverse (24331442012), we get a palindrome (45355855354).

The spelling of 21024413342 in words is "twenty-one billion, twenty-four million, four hundred thirteen thousand, three hundred forty-two".