1131100133 has 2 divisors, whose sum is σ = 1131100134. Its totient is φ = 1131100132.

The previous prime is 1131100121. The next prime is 1131100147. The reversal of 1131100133 is 3310011311.

It is a happy number.

It is an a-pointer prime, because the next prime (1131100147) can be obtained adding 1131100133 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664453729 + 466646404 = 25777^2 + 21602^2 .

It is an emirp because it is prime and its reverse (3310011311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131100133 - 2⁸ = 1131099877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131100163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565550066 + 565550067.

It is an arithmetic number, because the mean of its divisors is an integer number (565550067).

Almost surely, 2^1131100133 is an apocalyptic number.

It is an amenable number.

1131100133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131100133 is an equidigital number, since it uses as much as digits as its factorization.

1131100133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1131100133 is about 33631.8321386153. The cubic root of 1131100133 is about 1041.9183444891.

Adding to 1131100133 its reverse (3310011311), we get a palindrome (4441111444).

The spelling of 1131100133 in words is "one billion, one hundred thirty-one million, one hundred thousand, one hundred thirty-three".