1133221031 has 2 divisors, whose sum is σ = 1133221032. Its totient is φ = 1133221030.

The previous prime is 1133220983. The next prime is 1133221039. The reversal of 1133221031 is 1301223311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1133221031 - 2⁶ = 1133220967 is a prime.

It is a super-2 number, since 2×1133221031² = 2568379810201405922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133221039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566610515 + 566610516.

It is an arithmetic number, because the mean of its divisors is an integer number (566610516).

Almost surely, 2^1133221031 is an apocalyptic number.

1133221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133221031 is an equidigital number, since it uses as much as digits as its factorization.

1133221031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1133221031 is about 33663.3484816944. The cubic root of 1133221031 is about 1042.5691630221.

Adding to 1133221031 its reverse (1301223311), we get a palindrome (2434444342).

The spelling of 1133221031 in words is "one billion, one hundred thirty-three million, two hundred twenty-one thousand, thirty-one".