213143342099 has 4 divisors (see below), whose sum is σ = 213234470280. Its totient is φ = 213052213920.

The previous prime is 213143342047. The next prime is 213143342107. The reversal of 213143342099 is 990243341312.

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 213143342099 - 2²⁰ = 213142293523 is a prime.

It is a super-2 number, since 2×213143342099² (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 (213143342039) 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, 45560582 + ... + 45565259.

It is an arithmetic number, because the mean of its divisors is an integer number (53308617570).

Almost surely, 2^213143342099 is an apocalyptic number.

213143342099 is a deficient number, since it is larger than the sum of its proper divisors (91128181).

213143342099 is an equidigital number, since it uses as much as digits as its factorization.

213143342099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91128180.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 213143342099 in words is "two hundred thirteen billion, one hundred forty-three million, three hundred forty-two thousand, ninety-nine".