21103223341231 has 8 divisors (see below), whose sum is σ = 21212434100880. Its totient is φ = 20994033670848.

The previous prime is 21103223341223. The next prime is 21103223341253. The reversal of 21103223341231 is 13214332230112.

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 21103223341231 - 2³ = 21103223341223 is a prime.

It is a super-2 number, since 2×21103223341231² (a number of 27 digits) contains 22 as substring.

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 21103223341231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103223341931) 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, 3263841 + ... + 7270426.

It is an arithmetic number, because the mean of its divisors is an integer number (2651554262610).

Almost surely, 2^{21103223341231} is an apocalyptic number.

21103223341231 is a deficient number, since it is larger than the sum of its proper divisors (109210759649).

21103223341231 is a wasteful number, since it uses less digits than its factorization.

21103223341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544633.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21103223341231 its reverse (13214332230112), we get a palindrome (34317555571343).

The spelling of 21103223341231 in words is "twenty-one trillion, one hundred three billion, two hundred twenty-three million, three hundred forty-one thousand, two hundred thirty-one".