1112001993 has 8 divisors (see below), whose sum is σ = 1647410400. Its totient is φ = 741334644.

The previous prime is 1112001983. The next prime is 1112002007. The reversal of 1112001993 is 3991002111.

It is not a de Polignac number, because 1112001993 - 2²¹ = 1109904841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 41185259 = 1112001993 / (1 + 1 + 1 + 2 + 0 + 0 + 1 + 9 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (1112001983) 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, 20592603 + ... + 20592656.

It is an arithmetic number, because the mean of its divisors is an integer number (205926300).

Almost surely, 2^1112001993 is an apocalyptic number.

It is an amenable number.

1112001993 is a deficient number, since it is larger than the sum of its proper divisors (535408407).

1112001993 is an equidigital number, since it uses as much as digits as its factorization.

1112001993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41185268 (or 41185262 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 1112001993 is about 33346.6938841019. The cubic root of 1112001993 is about 1036.0209124171.

The spelling of 1112001993 in words is "one billion, one hundred twelve million, one thousand, nine hundred ninety-three".