21231230132003 has 8 divisors (see below), whose sum is σ = 22155658164000. Its totient is φ = 20306913022528.

The previous prime is 21231230131999. The next prime is 21231230132011. The reversal of 21231230132003 is 30023103213212.

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 21231230132003 - 2² = 21231230131999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 21231230132003.

It is not an unprimeable number, because it can be changed into a prime (21231230132803) 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, 27339368 + ... + 28105221.

It is an arithmetic number, because the mean of its divisors is an integer number (2769457270500).

Almost surely, 2^{21231230132003} is an apocalyptic number.

21231230132003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21231230132003 is a deficient number, since it is larger than the sum of its proper divisors (924428031997).

21231230132003 is a wasteful number, since it uses less digits than its factorization.

21231230132003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55461261.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21231230132003 its reverse (30023103213212), we get a palindrome (51254333345215).

The spelling of 21231230132003 in words is "twenty-one trillion, two hundred thirty-one billion, two hundred thirty million, one hundred thirty-two thousand, three".