21343233110 has 16 divisors (see below), whose sum is σ = 38420122176. Its totient is φ = 8536781568.

The previous prime is 21343233103. The next prime is 21343233113. The reversal of 21343233110 is 1133234312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343233113) 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, 143174 + ... + 251366.

It is an arithmetic number, because the mean of its divisors is an integer number (2401257636).

Almost surely, 2^21343233110 is an apocalyptic number.

21343233110 is a deficient number, since it is larger than the sum of its proper divisors (17076889066).

21343233110 is a wasteful number, since it uses less digits than its factorization.

21343233110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127927.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21343233110 its reverse (1133234312), we get a palindrome (22476467422).

The spelling of 21343233110 in words is "twenty-one billion, three hundred forty-three million, two hundred thirty-three thousand, one hundred ten".