21141302233 has 2 divisors, whose sum is σ = 21141302234. Its totient is φ = 21141302232.

The previous prime is 21141302201. The next prime is 21141302243. The reversal of 21141302233 is 33220314112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17421888064 + 3719414169 = 131992^2 + 60987^2 .

It is a cyclic number.

It is not a de Polignac number, because 21141302233 - 2⁵ = 21141302201 is a prime.

It is not a weakly prime, because it can be changed into another prime (21141302243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570651116 + 10570651117.

It is an arithmetic number, because the mean of its divisors is an integer number (10570651117).

Almost surely, 2^21141302233 is an apocalyptic number.

It is an amenable number.

21141302233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21141302233 is an equidigital number, since it uses as much as digits as its factorization.

21141302233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21141302233 its reverse (33220314112), we get a palindrome (54361616345).

The spelling of 21141302233 in words is "twenty-one billion, one hundred forty-one million, three hundred two thousand, two hundred thirty-three".