21343103210 has 32 divisors (see below), whose sum is σ = 45133949952. Its totient is φ = 7164118080.

The previous prime is 21343103167. The next prime is 21343103227. The reversal of 21343103210 is 1230134312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7461194 + ... + 7464053.

It is an arithmetic number, because the mean of its divisors is an integer number (1410435936).

Almost surely, 2^21343103210 is an apocalyptic number.

21343103210 is an abundant number, since it is smaller than the sum of its proper divisors (23790846742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21343103210 is a wasteful number, since it uses less digits than its factorization.

21343103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14925278.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21343103210 its reverse (1230134312), we get a palindrome (22573237522).

The spelling of 21343103210 in words is "twenty-one billion, three hundred forty-three million, one hundred three thousand, two hundred ten".