21103120222023 has 8 divisors (see below), whose sum is σ = 32157135576448. Its totient is φ = 12058925841144.

The previous prime is 21103120222021. The next prime is 21103120222091. The reversal of 21103120222023 is 32022202130112.

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

It is not a de Polignac number, because 21103120222023 - 2¹ = 21103120222021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1004910486763 = 21103120222023 / (2 + 1 + 1 + 0 + 3 + 1 + 2 + 0 + 2 + 2 + 2 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103120222021) 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, 502455243361 + ... + 502455243402.

It is an arithmetic number, because the mean of its divisors is an integer number (4019641947056).

Almost surely, 2^{21103120222023} is an apocalyptic number.

21103120222023 is a deficient number, since it is larger than the sum of its proper divisors (11054015354425).

21103120222023 is a wasteful number, since it uses less digits than its factorization.

21103120222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004910486773.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21103120222023 its reverse (32022202130112), we get a palindrome (53125322352135).

The spelling of 21103120222023 in words is "twenty-one trillion, one hundred three billion, one hundred twenty million, two hundred twenty-two thousand, twenty-three".