21433461131023 has 8 divisors (see below), whose sum is σ = 22387813437600. Its totient is φ = 20493459987168.

The previous prime is 21433461130967. The next prime is 21433461131041. The reversal of 21433461131023 is 32013116433412.

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

It is a cyclic number.

It is not a de Polignac number, because 21433461131023 - 2¹³ = 21433461122831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21433461131023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433461131123) 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, 3587787628 + ... + 3587793601.

It is an arithmetic number, because the mean of its divisors is an integer number (2798476679700).

Almost surely, 2^{21433461131023} is an apocalyptic number.

21433461131023 is a deficient number, since it is larger than the sum of its proper divisors (954352306577).

21433461131023 is a wasteful number, since it uses less digits than its factorization.

21433461131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175581361.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 21433461131023 its reverse (32013116433412), we get a palindrome (53446577564435).

The spelling of 21433461131023 in words is "twenty-one trillion, four hundred thirty-three billion, four hundred sixty-one million, one hundred thirty-one thousand, twenty-three".