21232352203 has 2 divisors, whose sum is σ = 21232352204. Its totient is φ = 21232352202.

The previous prime is 21232352159. The next prime is 21232352221. The reversal of 21232352203 is 30225323212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21232352203 - 2¹³ = 21232344011 is a prime.

It is not a weakly prime, because it can be changed into another prime (21232352263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616176101 + 10616176102.

It is an arithmetic number, because the mean of its divisors is an integer number (10616176102).

Almost surely, 2^21232352203 is an apocalyptic number.

21232352203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232352203 is an equidigital number, since it uses as much as digits as its factorization.

21232352203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 21232352203 its reverse (30225323212), we get a palindrome (51457675415).

The spelling of 21232352203 in words is "twenty-one billion, two hundred thirty-two million, three hundred fifty-two thousand, two hundred three".