21035150324113 has 4 divisors (see below), whose sum is σ = 21062791783908. Its totient is φ = 21007508864320.

The previous prime is 21035150324081. The next prime is 21035150324117. The reversal of 21035150324113 is 31142305153012.

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 9264432325009 + 11770717999104 = 3043753^2 + 3430848^2 .

It is a cyclic number.

It is not a de Polignac number, because 21035150324113 - 2⁵ = 21035150324081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21035150324117) 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, 13820728756 + ... + 13820730277.

It is an arithmetic number, because the mean of its divisors is an integer number (5265697945977).

Almost surely, 2^{21035150324113} is an apocalyptic number.

It is an amenable number.

21035150324113 is a deficient number, since it is larger than the sum of its proper divisors (27641459795).

21035150324113 is an equidigital number, since it uses as much as digits as its factorization.

21035150324113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27641459794.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 21035150324113 its reverse (31142305153012), we get a palindrome (52177455477125).

The spelling of 21035150324113 in words is "twenty-one trillion, thirty-five billion, one hundred fifty million, three hundred twenty-four thousand, one hundred thirteen".