1113128077 has 2 divisors, whose sum is σ = 1113128078. Its totient is φ = 1113128076.

The previous prime is 1113128063. The next prime is 1113128111. The reversal of 1113128077 is 7708213111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1033365316 + 79762761 = 32146^2 + 8931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113128077 - 2²³ = 1104739469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113128047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556564038 + 556564039.

It is an arithmetic number, because the mean of its divisors is an integer number (556564039).

Almost surely, 2^1113128077 is an apocalyptic number.

It is an amenable number.

1113128077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113128077 is an equidigital number, since it uses as much as digits as its factorization.

1113128077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 1113128077 is about 33363.5741041034. The cubic root of 1113128077 is about 1036.3705080098.

The spelling of 1113128077 in words is "one billion, one hundred thirteen million, one hundred twenty-eight thousand, seventy-seven".