21035510341 has 2 divisors, whose sum is σ = 21035510342. Its totient is φ = 21035510340.

The previous prime is 21035510333. The next prime is 21035510369. The reversal of 21035510341 is 14301553012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11957422500 + 9078087841 = 109350^2 + 95279^2 .

It is a cyclic number.

It is not a de Polignac number, because 21035510341 - 2³ = 21035510333 is a prime.

It is a super-3 number, since 3×21035510341³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21035610341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10517755170 + 10517755171.

It is an arithmetic number, because the mean of its divisors is an integer number (10517755171).

Almost surely, 2^21035510341 is an apocalyptic number.

It is an amenable number.

21035510341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21035510341 is an equidigital number, since it uses as much as digits as its factorization.

21035510341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 21035510341 in words is "twenty-one billion, thirty-five million, five hundred ten thousand, three hundred forty-one".