21123301233034 has 96 divisors (see below), whose sum is σ = 43307555147136. Its totient is φ = 7595766622080.

The previous prime is 21123301233007. The next prime is 21123301233091. The reversal of 21123301233034 is 43033210332112.

It is a junction number, because it is equal to n+sod(n) for n = 21123301232993 and 21123301233011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107852004 + ... + 108047680.

It is an arithmetic number, because the mean of its divisors is an integer number (451120366116).

Almost surely, 2^{21123301233034} is an apocalyptic number.

21123301233034 is an abundant number, since it is smaller than the sum of its proper divisors (22184253914102).

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

21123301233034 is a wasteful number, since it uses less digits than its factorization.

21123301233034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203420 (or 203413 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21123301233034 its reverse (43033210332112), we get a palindrome (64156511565146).

The spelling of 21123301233034 in words is "twenty-one trillion, one hundred twenty-three billion, three hundred one million, two hundred thirty-three thousand, thirty-four".