1120001011 has 6 divisors (see below), whose sum is σ = 1136971500. Its totient is φ = 1103280156.

The previous prime is 1120000991. The next prime is 1120001033. The reversal of 1120001011 is 1101000211.

It is not a de Polignac number, because 1120001011 - 2¹⁷ = 1119869939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120000985 and 1120001003.

It is not an unprimeable number, because it can be changed into a prime (1120001081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120261 + ... + 129238.

It is an arithmetic number, because the mean of its divisors is an integer number (189495250).

Almost surely, 2^1120001011 is an apocalyptic number.

1120001011 is a deficient number, since it is larger than the sum of its proper divisors (16970489).

1120001011 is an frugal number, since it uses more digits than its factorization.

1120001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249633 (or 249566 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1120001011 is about 33466.4161660612. The cubic root of 1120001011 is about 1038.4991328470.

Adding to 1120001011 its reverse (1101000211), we get a palindrome (2221001222).

The spelling of 1120001011 in words is "one billion, one hundred twenty million, one thousand, eleven".