203111310099 has 8 divisors (see below), whose sum is σ = 270818134480. Its totient is φ = 135406012896.

The previous prime is 203111310071. The next prime is 203111310109. The reversal of 203111310099 is 990013111302.

It is a happy number.

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

It is not a de Polignac number, because 203111310099 - 2²³ = 203102921491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203111311099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23404 + ... + 637785.

It is an arithmetic number, because the mean of its divisors is an integer number (33852266810).

Almost surely, 2^203111310099 is an apocalyptic number.

203111310099 is a deficient number, since it is larger than the sum of its proper divisors (67706824381).

203111310099 is a wasteful number, since it uses less digits than its factorization.

203111310099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763589.

The product of its (nonzero) digits is 1458, while the sum is 30.

The spelling of 203111310099 in words is "two hundred three billion, one hundred eleven million, three hundred ten thousand, ninety-nine".