1131303201 has 32 divisors (see below), whose sum is σ = 1770698496. Its totient is φ = 628992000.

The previous prime is 1131303191. The next prime is 1131303203. The reversal of 1131303201 is 1023031311.

It is not a de Polignac number, because 1131303201 - 2⁵ = 1131303169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131303203) 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 31 ways as a sum of consecutive naturals, for example, 360921 + ... + 364041.

It is an arithmetic number, because the mean of its divisors is an integer number (55334328).

Almost surely, 2^1131303201 is an apocalyptic number.

It is an amenable number.

1131303201 is a deficient number, since it is larger than the sum of its proper divisors (639395295).

1131303201 is a wasteful number, since it uses less digits than its factorization.

1131303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131303201 is about 33634.8509882235. The cubic root of 1131303201 is about 1041.9806931140.

Adding to 1131303201 its reverse (1023031311), we get a palindrome (2154334512).

The spelling of 1131303201 in words is "one billion, one hundred thirty-one million, three hundred three thousand, two hundred one".