213303013021033 has 16 divisors (see below), whose sum is σ = 230186124176400. Its totient is φ = 196488205885440.

The previous prime is 213303013021031. The next prime is 213303013021057. The reversal of 213303013021033 is 330120310303312.

It can be written as a sum of positive squares in 8 ways, for example, as 91690353458064 + 121612659562969 = 9575508^2 + 11027813^2 .

It is a cyclic number.

It is not a de Polignac number, because 213303013021033 - 2¹ = 213303013021031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213303013020989 and 213303013021007.

It is not an unprimeable number, because it can be changed into a prime (213303013021031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433503 + ... + 20937883.

It is an arithmetic number, because the mean of its divisors is an integer number (14386632761025).

Almost surely, 2^{213303013021033} is an apocalyptic number.

It is an amenable number.

213303013021033 is a deficient number, since it is larger than the sum of its proper divisors (16883111155367).

213303013021033 is a wasteful number, since it uses less digits than its factorization.

213303013021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17506332.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 213303013021033 its reverse (330120310303312), we get a palindrome (543423323324345).

The spelling of 213303013021033 in words is "two hundred thirteen trillion, three hundred three billion, thirteen million, twenty-one thousand, thirty-three".