10241440021 has 4 divisors (see below), whose sum is σ = 10780463200. Its totient is φ = 9702416844.

The previous prime is 10241440019. The next prime is 10241440039. The reversal of 10241440021 is 12004414201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12004414201 = 13 ⋅923416477.

It is a cyclic number.

It is not a de Polignac number, because 10241440021 - 2¹ = 10241440019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 539023159 = 10241440021 / (1 + 0 + 2 + 4 + 1 + 4 + 4 + 0 + 0 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10241440091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269511561 + ... + 269511598.

It is an arithmetic number, because the mean of its divisors is an integer number (2695115800).

Almost surely, 2^10241440021 is an apocalyptic number.

It is an amenable number.

10241440021 is a deficient number, since it is larger than the sum of its proper divisors (539023179).

10241440021 is an equidigital number, since it uses as much as digits as its factorization.

10241440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539023178.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10241440021 its reverse (12004414201), we get a palindrome (22245854222).

The spelling of 10241440021 in words is "ten billion, two hundred forty-one million, four hundred forty thousand, twenty-one".