210155543113 has 4 divisors (see below), whose sum is σ = 210156687748. Its totient is φ = 210154398480.

The previous prime is 210155543069. The next prime is 210155543119. The reversal of 210155543113 is 311345551012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 133716011584 + 76439531529 = 365672^2 + 276477^2 .

It is a cyclic number.

It is not a de Polignac number, because 210155543113 - 2³⁷ = 72716589641 is a prime.

It is a super-2 number, since 2×210155543113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210155543119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227778 + ... + 687163.

It is an arithmetic number, because the mean of its divisors is an integer number (52539171937).

Almost surely, 2^210155543113 is an apocalyptic number.

It is an amenable number.

210155543113 is a deficient number, since it is larger than the sum of its proper divisors (1144635).

210155543113 is an equidigital number, since it uses as much as digits as its factorization.

210155543113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144634.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 210155543113 in words is "two hundred ten billion, one hundred fifty-five million, five hundred forty-three thousand, one hundred thirteen".