213003124133 has 4 divisors (see below), whose sum is σ = 213251670060. Its totient is φ = 212754578208.

The previous prime is 213003124097. The next prime is 213003124153. The reversal of 213003124133 is 331421300312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 207978866209 + 5024257924 = 456047^2 + 70882^2 .

It is a cyclic number.

It is not a de Polignac number, because 213003124133 - 2²⁰ = 213002075557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213003124099 and 213003124108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213003124153) 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, 124271678 + ... + 124273391.

It is an arithmetic number, because the mean of its divisors is an integer number (53312917515).

Almost surely, 2^213003124133 is an apocalyptic number.

It is an amenable number.

213003124133 is a deficient number, since it is larger than the sum of its proper divisors (248545927).

213003124133 is an equidigital number, since it uses as much as digits as its factorization.

213003124133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248545926.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213003124133 its reverse (331421300312), we get a palindrome (544424424445).

The spelling of 213003124133 in words is "two hundred thirteen billion, three million, one hundred twenty-four thousand, one hundred thirty-three".