213511313052 has 72 divisors (see below), whose sum is σ = 541999589040. Its totient is φ = 70869012480.

The previous prime is 213511313047. The next prime is 213511313063. The reversal of 213511313052 is 250313115312.

213511313052 is a `hidden beast` number, since 2 + 1 + 351 + 1 + 3 + 1 + 305 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8733598 + ... + 8758010.

It is an arithmetic number, because the mean of its divisors is an integer number (7527772070).

Almost surely, 2^213511313052 is an apocalyptic number.

It is an amenable number.

213511313052 is an abundant number, since it is smaller than the sum of its proper divisors (328488275988).

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

213511313052 is a wasteful number, since it uses less digits than its factorization.

213511313052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25443 (or 25438 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 213511313052 its reverse (250313115312), we get a palindrome (463824428364).

The spelling of 213511313052 in words is "two hundred thirteen billion, five hundred eleven million, three hundred thirteen thousand, fifty-two".