1131333441 has 16 divisors (see below), whose sum is σ = 1733467008. Its totient is φ = 642902400.

The previous prime is 1131333439. The next prime is 1131333443. The reversal of 1131333441 is 1443331311.

It is an interprime number because it is at equal distance from previous prime (1131333439) and next prime (1131333443).

It is not a de Polignac number, because 1131333441 - 2¹ = 1131333439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131333443) 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, 145020 + ... + 152621.

It is an arithmetic number, because the mean of its divisors is an integer number (108341688).

Almost surely, 2^1131333441 is an apocalyptic number.

It is an amenable number.

1131333441 is a deficient number, since it is larger than the sum of its proper divisors (602133567).

1131333441 is a wasteful number, since it uses less digits than its factorization.

1131333441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297832.

The product of its digits is 1296, while the sum is 24.

The square root of 1131333441 is about 33635.3005189488. The cubic root of 1131333441 is about 1041.9899771608.

Adding to 1131333441 its reverse (1443331311), we get a palindrome (2574664752).

The spelling of 1131333441 in words is "one billion, one hundred thirty-one million, three hundred thirty-three thousand, four hundred forty-one".