21133232223463 has 2 divisors, whose sum is σ = 21133232223464. Its totient is φ = 21133232223462.

The previous prime is 21133232223377. The next prime is 21133232223479. The reversal of 21133232223463 is 36432223233112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21133232223463 - 2⁴¹ = 18934208967911 is a prime.

It is a super-2 number, since 2×21133232223463² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21133232223163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566616111731 + 10566616111732.

It is an arithmetic number, because the mean of its divisors is an integer number (10566616111732).

Almost surely, 2^{21133232223463} is an apocalyptic number.

21133232223463 is a deficient number, since it is larger than the sum of its proper divisors (1).

21133232223463 is an equidigital number, since it uses as much as digits as its factorization.

21133232223463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 37.

Adding to 21133232223463 its reverse (36432223233112), we get a palindrome (57565455456575).

The spelling of 21133232223463 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred thirty-two million, two hundred twenty-three thousand, four hundred sixty-three".