1120201011 has 24 divisors (see below), whose sum is σ = 1689072944. Its totient is φ = 714692160.

The previous prime is 1120201007. The next prime is 1120201013. The reversal of 1120201011 is 1101020211.

It is a happy number.

It is not a de Polignac number, because 1120201011 - 2² = 1120201007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120200984 and 1120201002.

It is not an unprimeable number, because it can be changed into a prime (1120201013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7261 + ... + 47886.

Almost surely, 2^1120201011 is an apocalyptic number.

1120201011 is a deficient number, since it is larger than the sum of its proper divisors (568871933).

1120201011 is a wasteful number, since it uses less digits than its factorization.

1120201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55251 (or 55248 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1120201011 is about 33469.4041028519. The cubic root of 1120201011 is about 1038.5609445367.

Adding to 1120201011 its reverse (1101020211), we get a palindrome (2221221222).

The spelling of 1120201011 in words is "one billion, one hundred twenty million, two hundred one thousand, eleven".