213520121552003 has 16 divisors (see below), whose sum is σ = 244816875823104. Its totient is φ = 182421881648160.

The previous prime is 213520121551987. The next prime is 213520121552011. The reversal of 213520121552003 is 300255121025312.

It is not a de Polignac number, because 213520121552003 - 2⁴ = 213520121551987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213520121552303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56260001 + ... + 59935197.

It is an arithmetic number, because the mean of its divisors is an integer number (15301054738944).

Almost surely, 2^{213520121552003} is an apocalyptic number.

213520121552003 is a deficient number, since it is larger than the sum of its proper divisors (31296754271101).

213520121552003 is a wasteful number, since it uses less digits than its factorization.

213520121552003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702202.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 213520121552003 its reverse (300255121025312), we get a palindrome (513775242577315).

The spelling of 213520121552003 in words is "two hundred thirteen trillion, five hundred twenty billion, one hundred twenty-one million, five hundred fifty-two thousand, three".