213012145015 has 16 divisors (see below), whose sum is σ = 258510954240. Its totient is φ = 168482350080.

The previous prime is 213012144979. The next prime is 213012145033. The reversal of 213012145015 is 510541210312.

213012145015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213012145015 - 2²⁷ = 212877927287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259041 + ... + 702229.

It is an arithmetic number, because the mean of its divisors is an integer number (16156934640).

Almost surely, 2^213012145015 is an apocalyptic number.

213012145015 is a deficient number, since it is larger than the sum of its proper divisors (45498809225).

213012145015 is an equidigital number, since it uses as much as digits as its factorization.

213012145015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444282.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 213012145015 its reverse (510541210312), we get a palindrome (723553355327).

The spelling of 213012145015 in words is "two hundred thirteen billion, twelve million, one hundred forty-five thousand, fifteen".