21010353041 has 4 divisors (see below), whose sum is σ = 21161506800. Its totient is φ = 20859199284.

The previous prime is 21010353029. The next prime is 21010353043. The reversal of 21010353041 is 14035301012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21010353041 - 2⁶ = 21010352977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010353043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75576671 + ... + 75576948.

It is an arithmetic number, because the mean of its divisors is an integer number (5290376700).

Almost surely, 2^21010353041 is an apocalyptic number.

It is an amenable number.

21010353041 is a deficient number, since it is larger than the sum of its proper divisors (151153759).

21010353041 is a wasteful number, since it uses less digits than its factorization.

21010353041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151153758.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 21010353041 its reverse (14035301012), we get a palindrome (35045654053).

The spelling of 21010353041 in words is "twenty-one billion, ten million, three hundred fifty-three thousand, forty-one".