21023200101103 has 4 divisors (see below), whose sum is σ = 21419864254008. Its totient is φ = 20626535948200.

The previous prime is 21023200101083. The next prime is 21023200101119. The reversal of 21023200101103 is 30110100232012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21023200101103 - 2¹³ = 21023200092911 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 (21023200101503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198332076373 + ... + 198332076478.

It is an arithmetic number, because the mean of its divisors is an integer number (5354966063502).

Almost surely, 2^{21023200101103} is an apocalyptic number.

21023200101103 is a deficient number, since it is larger than the sum of its proper divisors (396664152905).

21023200101103 is an equidigital number, since it uses as much as digits as its factorization.

21023200101103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396664152904.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21023200101103 its reverse (30110100232012), we get a palindrome (51133300333115).

The spelling of 21023200101103 in words is "twenty-one trillion, twenty-three billion, two hundred million, one hundred one thousand, one hundred three".