1131342077 has 2 divisors, whose sum is σ = 1131342078. Its totient is φ = 1131342076.

The previous prime is 1131341969. The next prime is 1131342097. The reversal of 1131342077 is 7702431311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837870916 + 293471161 = 28946^2 + 17131^2 .

It is an emirp because it is prime and its reverse (7702431311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131342077 - 2¹⁴ = 1131325693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131342097) 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, 565671038 + 565671039.

It is an arithmetic number, because the mean of its divisors is an integer number (565671039).

Almost surely, 2^1131342077 is an apocalyptic number.

It is an amenable number.

1131342077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131342077 is an equidigital number, since it uses as much as digits as its factorization.

1131342077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1131342077 is about 33635.4288957343. The cubic root of 1131342077 is about 1041.9926284871.

Adding to 1131342077 its reverse (7702431311), we get a palindrome (8833773388).

The spelling of 1131342077 in words is "one billion, one hundred thirty-one million, three hundred forty-two thousand, seventy-seven".