21024454152341 has 2 divisors, whose sum is σ = 21024454152342. Its totient is φ = 21024454152340.

The previous prime is 21024454152263. The next prime is 21024454152419. The reversal of 21024454152341 is 14325145442012.

It is a balanced prime because it is at equal distance from previous prime (21024454152263) and next prime (21024454152419).

It can be written as a sum of positive squares in only one way, i.e., 16861001626225 + 4163452526116 = 4106215^2 + 2040454^2 .

It is a cyclic number.

It is not a de Polignac number, because 21024454152341 - 2¹⁰ = 21024454151317 is a prime.

It is a super-3 number, since 3×21024454152341³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21024454152295 and 21024454152304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21024454152641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10512227076170 + 10512227076171.

It is an arithmetic number, because the mean of its divisors is an integer number (10512227076171).

Almost surely, 2^{21024454152341} is an apocalyptic number.

It is an amenable number.

21024454152341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21024454152341 is an equidigital number, since it uses as much as digits as its factorization.

21024454152341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 21024454152341 its reverse (14325145442012), we get a palindrome (35349599594353).

The spelling of 21024454152341 in words is "twenty-one trillion, twenty-four billion, four hundred fifty-four million, one hundred fifty-two thousand, three hundred forty-one".