21114433234345 has 64 divisors (see below), whose sum is σ = 29407063818240. Its totient is φ = 14407856467200.

The previous prime is 21114433234339. The next prime is 21114433234421. The reversal of 21114433234345 is 54343233441112.

It is not a de Polignac number, because 21114433234345 - 2⁵ = 21114433234313 is a prime.

It is a super-2 number, since 2×21114433234345² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21114433234298 and 21114433234307.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17261716 + ... + 18444394.

It is an arithmetic number, because the mean of its divisors is an integer number (459485372160).

Almost surely, 2^{21114433234345} is an apocalyptic number.

It is an amenable number.

21114433234345 is a deficient number, since it is larger than the sum of its proper divisors (8292630583895).

21114433234345 is a wasteful number, since it uses less digits than its factorization.

21114433234345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183046.

The product of its digits is 414720, while the sum is 40.

Adding to 21114433234345 its reverse (54343233441112), we get a palindrome (75457666675457).

The spelling of 21114433234345 in words is "twenty-one trillion, one hundred fourteen billion, four hundred thirty-three million, two hundred thirty-four thousand, three hundred forty-five".