211230004393 has 8 divisors (see below), whose sum is σ = 215239872456. Its totient is φ = 207221040000.

The previous prime is 211230004303. The next prime is 211230004399. The reversal of 211230004393 is 393400032112.

It can be written as a sum of positive squares in 4 ways, for example, as 546250384 + 210683754009 = 23372^2 + 459003^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211230004393 is a prime.

It is a super-4 number, since 4×211230004393⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211230004399) 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, 255663 + ... + 698443.

It is an arithmetic number, because the mean of its divisors is an integer number (26904984057).

Almost surely, 2^211230004393 is an apocalyptic number.

It is an amenable number.

211230004393 is a deficient number, since it is larger than the sum of its proper divisors (4009868063).

211230004393 is an equidigital number, since it uses as much as digits as its factorization.

211230004393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451835.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 211230004393 in words is "two hundred eleven billion, two hundred thirty million, four thousand, three hundred ninety-three".