2002111993 has 8 divisors (see below), whose sum is σ = 2288714688. Its totient is φ = 1715655984.

The previous prime is 2002111987. The next prime is 2002111997. The reversal of 2002111993 is 3991112002.

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

It is not a de Polignac number, because 2002111993 - 2⁹ = 2002111481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002111997) 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, 5671 + ... + 63532.

It is an arithmetic number, because the mean of its divisors is an integer number (286089336).

Almost surely, 2^2002111993 is an apocalyptic number.

It is an amenable number.

2002111993 is a deficient number, since it is larger than the sum of its proper divisors (286602695).

2002111993 is an equidigital number, since it uses as much as digits as its factorization.

2002111993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73343.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2002111993 is about 44744.9661191066. The cubic root of 2002111993 is about 1260.3643846178.

Adding to 2002111993 its reverse (3991112002), we get a palindrome (5993223995).

The spelling of 2002111993 in words is "two billion, two million, one hundred eleven thousand, nine hundred ninety-three".