21342110204 has 24 divisors (see below), whose sum is σ = 37508819040. Its totient is φ = 10625345024.

The previous prime is 21342110201. The next prime is 21342110213. The reversal of 21342110204 is 40201124312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342110201) 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, 3119972 + ... + 3126804.

It is an arithmetic number, because the mean of its divisors is an integer number (1562867460).

Almost surely, 2^21342110204 is an apocalyptic number.

It is an amenable number.

21342110204 is a deficient number, since it is larger than the sum of its proper divisors (16166708836).

21342110204 is a wasteful number, since it uses less digits than its factorization.

21342110204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069 (or 10067 counting only the distinct ones).

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

Adding to 21342110204 its reverse (40201124312), we get a palindrome (61543234516).

The spelling of 21342110204 in words is "twenty-one billion, three hundred forty-two million, one hundred ten thousand, two hundred four".