213233509919 has 8 divisors (see below), whose sum is σ = 213784337760. Its totient is φ = 212682951936.

The previous prime is 213233509913. The next prime is 213233509943. The reversal of 213233509919 is 919905332312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213233509919 - 2²⁸ = 212965074463 is a prime.

It is a super-2 number, since 2×213233509919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233509913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565747 + ... + 1696475.

It is an arithmetic number, because the mean of its divisors is an integer number (26723042220).

Almost surely, 2^213233509919 is an apocalyptic number.

213233509919 is a deficient number, since it is larger than the sum of its proper divisors (550827841).

213233509919 is a wasteful number, since it uses less digits than its factorization.

213233509919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134929.

The product of its (nonzero) digits is 393660, while the sum is 47.

The spelling of 213233509919 in words is "two hundred thirteen billion, two hundred thirty-three million, five hundred nine thousand, nine hundred nineteen".