203311112320987 has 8 divisors (see below), whose sum is σ = 221906014482240. Its totient is φ = 184734889121160.

The previous prime is 203311112320973. The next prime is 203311112320991. The reversal of 203311112320987 is 789023211113302.

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 203311112320987 - 2³¹ = 203308964837339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203311112320937) 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, 4669717593 + ... + 4669761130.

It is an arithmetic number, because the mean of its divisors is an integer number (27738251810280).

Almost surely, 2^{203311112320987} is an apocalyptic number.

203311112320987 is a deficient number, since it is larger than the sum of its proper divisors (18594902161253).

203311112320987 is a wasteful number, since it uses less digits than its factorization.

203311112320987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9339480713.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 203311112320987 in words is "two hundred three trillion, three hundred eleven billion, one hundred twelve million, three hundred twenty thousand, nine hundred eighty-seven".