21342410102 has 64 divisors (see below), whose sum is σ = 37248712704. Its totient is φ = 9090385920.

The previous prime is 21342410087. The next prime is 21342410107. The reversal of 21342410102 is 20101424312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342410107) 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 31 ways as a sum of consecutive naturals, for example, 6801878 + ... + 6805014.

It is an arithmetic number, because the mean of its divisors is an integer number (582011136).

Almost surely, 2^21342410102 is an apocalyptic number.

21342410102 is a deficient number, since it is larger than the sum of its proper divisors (15906302602).

21342410102 is a wasteful number, since it uses less digits than its factorization.

21342410102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21342410102 its reverse (20101424312), we get a palindrome (41443834414).

The spelling of 21342410102 in words is "twenty-one billion, three hundred forty-two million, four hundred ten thousand, one hundred two".