21033123000230 has 128 divisors (see below), whose sum is σ = 42870864726144. Its totient is φ = 7362242150400.

The previous prime is 21033123000221. The next prime is 21033123000301. The reversal of 21033123000230 is 3200032133012.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 1270031150 + ... + 1270047710.

It is an arithmetic number, because the mean of its divisors is an integer number (334928630673).

Almost surely, 2^{21033123000230} is an apocalyptic number.

21033123000230 is an abundant number, since it is smaller than the sum of its proper divisors (21837741725914).

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

21033123000230 is a wasteful number, since it uses less digits than its factorization.

21033123000230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19930.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21033123000230 its reverse (3200032133012), we get a palindrome (24233155133242).

The spelling of 21033123000230 in words is "twenty-one trillion, thirty-three billion, one hundred twenty-three million, two hundred thirty", and thus it is an aban number.