21342101324 has 12 divisors (see below), whose sum is σ = 37633782648. Its totient is φ = 10589592000.

The previous prime is 21342101309. The next prime is 21342101357. The reversal of 21342101324 is 42310124312.

It is a self number, because there is not a number n which added to its sum of digits gives 21342101324.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20364077 + ... + 20365124.

It is an arithmetic number, because the mean of its divisors is an integer number (3136148554).

Almost surely, 2^21342101324 is an apocalyptic number.

It is an amenable number.

21342101324 is a deficient number, since it is larger than the sum of its proper divisors (16291681324).

21342101324 is a wasteful number, since it uses less digits than its factorization.

21342101324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40729336 (or 40729334 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21342101324 its reverse (42310124312), we get a palindrome (63652225636).

The spelling of 21342101324 in words is "twenty-one billion, three hundred forty-two million, one hundred one thousand, three hundred twenty-four".