211543401352 has 16 divisors (see below), whose sum is σ = 396791204940. Its totient is φ = 105732413376.

The previous prime is 211543401337. The next prime is 211543401379. The reversal of 211543401352 is 253104345112.

It can be written as a sum of positive squares in 2 ways, for example, as 184035852036 + 27507549316 = 428994^2 + 165854^2 .

It is a super-2 number, since 2×211543401352² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888023 + ... + 4931110.

Almost surely, 2^211543401352 is an apocalyptic number.

It is an amenable number.

211543401352 is a deficient number, since it is larger than the sum of its proper divisors (185247803588).

211543401352 is a wasteful number, since it uses less digits than its factorization.

211543401352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821832 (or 9821828 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 211543401352 its reverse (253104345112), we get a palindrome (464647746464).

The spelling of 211543401352 in words is "two hundred eleven billion, five hundred forty-three million, four hundred one thousand, three hundred fifty-two".