1133243131 has 2 divisors, whose sum is σ = 1133243132. Its totient is φ = 1133243130.

The previous prime is 1133243123. The next prime is 1133243197. The reversal of 1133243131 is 1313423311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1133243131 - 2³ = 1133243123 is a prime.

It is a super-2 number, since 2×1133243131² = 2568479987917366322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1133243831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566621565 + 566621566.

It is an arithmetic number, because the mean of its divisors is an integer number (566621566).

Almost surely, 2^1133243131 is an apocalyptic number.

1133243131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133243131 is an equidigital number, since it uses as much as digits as its factorization.

1133243131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 1133243131 is about 33663.6767302682. The cubic root of 1133243131 is about 1042.5759403492.

Adding to 1133243131 its reverse (1313423311), we get a palindrome (2446666442).

The spelling of 1133243131 in words is "one billion, one hundred thirty-three million, two hundred forty-three thousand, one hundred thirty-one".