1001111133 has 16 divisors (see below), whose sum is σ = 1519474176. Its totient is φ = 580353840.

The previous prime is 1001111107. The next prime is 1001111141. The reversal of 1001111133 is 3311111001.

It is not a de Polignac number, because 1001111133 - 2¹³ = 1001102941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658735 + ... + 660252.

It is an arithmetic number, because the mean of its divisors is an integer number (94967136).

Almost surely, 2^1001111133 is an apocalyptic number.

It is an amenable number.

1001111133 is a deficient number, since it is larger than the sum of its proper divisors (518363043).

1001111133 is a wasteful number, since it uses less digits than its factorization.

1001111133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319024.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1001111133 is about 31640.3402794597. The cubic root of 1001111133 is about 1000.3702405717.

Adding to 1001111133 its reverse (3311111001), we get a palindrome (4312222134).

The spelling of 1001111133 in words is "one billion, one million, one hundred eleven thousand, one hundred thirty-three".