213002240243 has 16 divisors (see below), whose sum is σ = 230505534336. Its totient is φ = 195659919360.

The previous prime is 213002240239. The next prime is 213002240249. The reversal of 213002240243 is 342042200312.

It is a cyclic number.

It is not a de Polignac number, because 213002240243 - 2² = 213002240239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213002240249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4434371 + ... + 4482147.

It is an arithmetic number, because the mean of its divisors is an integer number (14406595896).

Almost surely, 2^213002240243 is an apocalyptic number.

213002240243 is a deficient number, since it is larger than the sum of its proper divisors (17503294093).

213002240243 is a wasteful number, since it uses less digits than its factorization.

213002240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49454.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 213002240243 its reverse (342042200312), we get a palindrome (555044440555).

The spelling of 213002240243 in words is "two hundred thirteen billion, two million, two hundred forty thousand, two hundred forty-three".