10442010261209 has 4 divisors (see below), whose sum is σ = 10442121937380. Its totient is φ = 10441898585040.

The previous prime is 10442010261149. The next prime is 10442010261229. The reversal of 10442010261209 is 90216201024401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4774539645184 + 5667470616025 = 2185072^2 + 2380645^2 .

It is a cyclic number.

It is not a de Polignac number, because 10442010261209 - 2¹² = 10442010257113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10442010261229) 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, 55697714 + ... + 55884875.

It is an arithmetic number, because the mean of its divisors is an integer number (2610530484345).

Almost surely, 2^{10442010261209} is an apocalyptic number.

It is an amenable number.

10442010261209 is a deficient number, since it is larger than the sum of its proper divisors (111676171).

10442010261209 is an equidigital number, since it uses as much as digits as its factorization.

10442010261209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111676170.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 10442010261209 in words is "ten trillion, four hundred forty-two billion, ten million, two hundred sixty-one thousand, two hundred nine".