211053515320 has 64 divisors (see below), whose sum is σ = 480823555680. Its totient is φ = 83368060416.

The previous prime is 211053515311. The next prime is 211053515353. The reversal of 211053515320 is 23515350112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278982 + ... + 1434538.

Almost surely, 2^211053515320 is an apocalyptic number.

211053515320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211053515320 is an abundant number, since it is smaller than the sum of its proper divisors (269770040360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211053515320 is a wasteful number, since it uses less digits than its factorization.

211053515320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155992 (or 155988 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 211053515320 its reverse (23515350112), we get a palindrome (234568865432).

The spelling of 211053515320 in words is "two hundred eleven billion, fifty-three million, five hundred fifteen thousand, three hundred twenty".