210552543231 has 4 divisors (see below), whose sum is σ = 280736724312. Its totient is φ = 140368362152.

The previous prime is 210552543217. The next prime is 210552543277. The reversal of 210552543231 is 132345255012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210552543231 - 2²¹ = 210550446079 is a prime.

It is a super-2 number, since 2×210552543231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210552543192 and 210552543201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210552543031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35092090536 + ... + 35092090541.

It is an arithmetic number, because the mean of its divisors is an integer number (70184181078).

Almost surely, 2^210552543231 is an apocalyptic number.

210552543231 is a deficient number, since it is larger than the sum of its proper divisors (70184181081).

210552543231 is an equidigital number, since it uses as much as digits as its factorization.

210552543231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70184181080.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 210552543231 its reverse (132345255012), we get a palindrome (342897798243).

The spelling of 210552543231 in words is "two hundred ten billion, five hundred fifty-two million, five hundred forty-three thousand, two hundred thirty-one".