21203332112023 has 16 divisors (see below), whose sum is σ = 22463395035840. Its totient is φ = 19944694540800.

The previous prime is 21203332111979. The next prime is 21203332112093. The reversal of 21203332112023 is 32021123330212.

It is a cyclic number.

It is not a de Polignac number, because 21203332112023 - 2³³ = 21194742177431 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 (21203332112093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366931393 + ... + 366989173.

It is an arithmetic number, because the mean of its divisors is an integer number (1403962189740).

Almost surely, 2^{21203332112023} is an apocalyptic number.

21203332112023 is a deficient number, since it is larger than the sum of its proper divisors (1260062923817).

21203332112023 is a wasteful number, since it uses less digits than its factorization.

21203332112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69738.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21203332112023 its reverse (32021123330212), we get a palindrome (53224455442235).

The spelling of 21203332112023 in words is "twenty-one trillion, two hundred three billion, three hundred thirty-two million, one hundred twelve thousand, twenty-three".