1101087993 has 8 divisors (see below), whose sum is σ = 1531948608. Its totient is φ = 702143024.

The previous prime is 1101087991. The next prime is 1101088013. The reversal of 1101087993 is 3997801011.

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 1101087993 - 2¹ = 1101087991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101087991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7978830 + ... + 7978967.

It is an arithmetic number, because the mean of its divisors is an integer number (191493576).

Almost surely, 2^1101087993 is an apocalyptic number.

It is an amenable number.

1101087993 is a deficient number, since it is larger than the sum of its proper divisors (430860615).

1101087993 is a wasteful number, since it uses less digits than its factorization.

1101087993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15957823.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 1101087993 is about 33182.6459614058. The cubic root of 1101087993 is about 1032.6203407467.

The spelling of 1101087993 in words is "one billion, one hundred one million, eighty-seven thousand, nine hundred ninety-three".