394731212203 has 8 divisors (see below), whose sum is σ = 395820165888. Its totient is φ = 393643466664.

The previous prime is 394731212177. The next prime is 394731212231. The reversal of 394731212203 is 302212137493.

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 394731212203 - 2³³ = 386141277611 is a prime.

It is a super-2 number, since 2×394731212203² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394731212273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354276 + ... + 956542.

It is an arithmetic number, because the mean of its divisors is an integer number (49477520736).

Almost surely, 2^394731212203 is an apocalyptic number.

394731212203 is a deficient number, since it is larger than the sum of its proper divisors (1088953685).

394731212203 is a wasteful number, since it uses less digits than its factorization.

394731212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604073.

The product of its (nonzero) digits is 54432, while the sum is 37.

Adding to 394731212203 its reverse (302212137493), we get a palindrome (696943349696).

The spelling of 394731212203 in words is "three hundred ninety-four billion, seven hundred thirty-one million, two hundred twelve thousand, two hundred three".