1011131201 has 16 divisors (see below), whose sum is σ = 1037137920. Its totient is φ = 985582080.

The previous prime is 1011131171. The next prime is 1011131207. The reversal of 1011131201 is 1021311101.

It is a happy number.

It is not a de Polignac number, because 1011131201 - 2⁶ = 1011131137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011131207) 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, 2599115 + ... + 2599503.

It is an arithmetic number, because the mean of its divisors is an integer number (64821120).

Almost surely, 2^1011131201 is an apocalyptic number.

It is an amenable number.

1011131201 is a deficient number, since it is larger than the sum of its proper divisors (26006719).

1011131201 is a wasteful number, since it uses less digits than its factorization.

1011131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1011131201 is about 31798.2892778841. The cubic root of 1011131201 is about 1003.6967177716.

Adding to 1011131201 its reverse (1021311101), we get a palindrome (2032442302).

The spelling of 1011131201 in words is "one billion, eleven million, one hundred thirty-one thousand, two hundred one".