213331250501 has 4 divisors (see below), whose sum is σ = 219096960012. Its totient is φ = 207565540992.

The previous prime is 213331250423. The next prime is 213331250543. The reversal of 213331250501 is 105052133312.

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 178463157601 + 34868092900 = 422449^2 + 186730^2 .

It is a cyclic number.

It is not a de Polignac number, because 213331250501 - 2¹⁴ = 213331234117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331259501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2882854700 + ... + 2882854773.

It is an arithmetic number, because the mean of its divisors is an integer number (54774240003).

Almost surely, 2^213331250501 is an apocalyptic number.

It is an amenable number.

213331250501 is a deficient number, since it is larger than the sum of its proper divisors (5765709511).

213331250501 is an equidigital number, since it uses as much as digits as its factorization.

213331250501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765709510.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 213331250501 its reverse (105052133312), we get a palindrome (318383383813).

The spelling of 213331250501 in words is "two hundred thirteen billion, three hundred thirty-one million, two hundred fifty thousand, five hundred one".