21450014232371 has 2 divisors, whose sum is σ = 21450014232372. Its totient is φ = 21450014232370.

The previous prime is 21450014232337. The next prime is 21450014232463. The reversal of 21450014232371 is 17323241005412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21450014232371 - 2¹⁸ = 21450013970227 is a prime.

It is a super-2 number, since 2×21450014232371² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21450014232331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10725007116185 + 10725007116186.

It is an arithmetic number, because the mean of its divisors is an integer number (10725007116186).

Almost surely, 2^{21450014232371} is an apocalyptic number.

21450014232371 is a deficient number, since it is larger than the sum of its proper divisors (1).

21450014232371 is an equidigital number, since it uses as much as digits as its factorization.

21450014232371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 21450014232371 its reverse (17323241005412), we get a palindrome (38773255237783).

The spelling of 21450014232371 in words is "twenty-one trillion, four hundred fifty billion, fourteen million, two hundred thirty-two thousand, three hundred seventy-one".