200312310121993 has 8 divisors (see below), whose sum is σ = 203064151752000. Its totient is φ = 197568526594608.

The previous prime is 200312310121991. The next prime is 200312310121999. The reversal of 200312310121993 is 399121013213002.

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 200312310121993 - 2¹ = 200312310121991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200312310121991) 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, 2014475598 + ... + 2014575031.

It is an arithmetic number, because the mean of its divisors is an integer number (25383018969000).

Almost surely, 2^{200312310121993} is an apocalyptic number.

It is an amenable number.

200312310121993 is a deficient number, since it is larger than the sum of its proper divisors (2751841630007).

200312310121993 is an equidigital number, since it uses as much as digits as its factorization.

200312310121993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029051311.

The product of its (nonzero) digits is 17496, while the sum is 37.

Adding to 200312310121993 its reverse (399121013213002), we get a palindrome (599433323334995).

The spelling of 200312310121993 in words is "two hundred trillion, three hundred twelve billion, three hundred ten million, one hundred twenty-one thousand, nine hundred ninety-three".