21238526837703 has 8 divisors (see below), whose sum is σ = 32363469467008. Its totient is φ = 12136301050104.

The previous prime is 21238526837699. The next prime is 21238526837713. The reversal of 21238526837703 is 30773862583212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21238526837703 - 2² = 21238526837699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21238526837713) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 505679210401 + ... + 505679210442.

It is an arithmetic number, because the mean of its divisors is an integer number (4045433683376).

Almost surely, 2^{21238526837703} is an apocalyptic number.

21238526837703 is a deficient number, since it is larger than the sum of its proper divisors (11124942629305).

21238526837703 is a wasteful number, since it uses less digits than its factorization.

21238526837703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011358420853.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 21238526837703 in words is "twenty-one trillion, two hundred thirty-eight billion, five hundred twenty-six million, eight hundred thirty-seven thousand, seven hundred three".