213120037365 has 32 divisors (see below), whose sum is σ = 353529062400. Its totient is φ = 109517045760.

The previous prime is 213120037337. The next prime is 213120037399. The reversal of 213120037365 is 563730021312.

It is not a de Polignac number, because 213120037365 - 2⁶ = 213120037301 is a prime.

It is a super-2 number, since 2×213120037365² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 894220 + ... + 1107189.

It is an arithmetic number, because the mean of its divisors is an integer number (11047783200).

Almost surely, 2^213120037365 is an apocalyptic number.

It is an amenable number.

213120037365 is a deficient number, since it is larger than the sum of its proper divisors (140409025035).

213120037365 is a wasteful number, since it uses less digits than its factorization.

213120037365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001677.

The product of its (nonzero) digits is 22680, while the sum is 33.

Adding to 213120037365 its reverse (563730021312), we get a palindrome (776850058677).

The spelling of 213120037365 in words is "two hundred thirteen billion, one hundred twenty million, thirty-seven thousand, three hundred sixty-five".