201013031999 has 4 divisors (see below), whose sum is σ = 216475572936. Its totient is φ = 185550491064.

The previous prime is 201013031993. The next prime is 201013032007. The reversal of 201013031999 is 999130310102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201013031999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201013031993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7731270449 + ... + 7731270474.

It is an arithmetic number, because the mean of its divisors is an integer number (54118893234).

Almost surely, 2^201013031999 is an apocalyptic number.

201013031999 is a deficient number, since it is larger than the sum of its proper divisors (15462540937).

201013031999 is a wasteful number, since it uses less digits than its factorization.

201013031999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15462540936.

The product of its (nonzero) digits is 13122, while the sum is 38.

The spelling of 201013031999 in words is "two hundred one billion, thirteen million, thirty-one thousand, nine hundred ninety-nine".