21033230955494 has 16 divisors (see below), whose sum is σ = 32047623302400. Its totient is φ = 10351184418120.

The previous prime is 21033230955493. The next prime is 21033230955551. The reversal of 21033230955494 is 49455903233012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033230955491) 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, 123555464 + ... + 123725579.

It is an arithmetic number, because the mean of its divisors is an integer number (2002976456400).

Almost surely, 2^{21033230955494} is an apocalyptic number.

21033230955494 is a deficient number, since it is larger than the sum of its proper divisors (11014392346906).

21033230955494 is a wasteful number, since it uses less digits than its factorization.

21033230955494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247281715.

The product of its (nonzero) digits is 3499200, while the sum is 50.

The spelling of 21033230955494 in words is "twenty-one trillion, thirty-three billion, two hundred thirty million, nine hundred fifty-five thousand, four hundred ninety-four".