21340110343233 has 24 divisors (see below), whose sum is σ = 31327545777696. Its totient is φ = 12814744924800.

The previous prime is 21340110343199. The next prime is 21340110343241. The reversal of 21340110343233 is 33234301104312.

It is not a de Polignac number, because 21340110343233 - 2⁶ = 21340110343169 is a prime.

It is a super-2 number, since 2×21340110343233² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21340110343233.

It is not an unprimeable number, because it can be changed into a prime (21340110342233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26822388 + ... + 27606533.

It is an arithmetic number, because the mean of its divisors is an integer number (1305314407404).

Almost surely, 2^{21340110343233} is an apocalyptic number.

It is an amenable number.

21340110343233 is a deficient number, since it is larger than the sum of its proper divisors (9987435434463).

21340110343233 is a wasteful number, since it uses less digits than its factorization.

21340110343233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54429153 (or 54429044 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 21340110343233 its reverse (33234301104312), we get a palindrome (54574411447545).

The spelling of 21340110343233 in words is "twenty-one trillion, three hundred forty billion, one hundred ten million, three hundred forty-three thousand, two hundred thirty-three".