1311100477 has 2 divisors, whose sum is σ = 1311100478. Its totient is φ = 1311100476.

The previous prime is 1311100451. The next prime is 1311100481. The reversal of 1311100477 is 7740011131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1260889081 + 50211396 = 35509^2 + 7086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311100477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311100177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655550238 + 655550239.

It is an arithmetic number, because the mean of its divisors is an integer number (655550239).

Almost surely, 2^1311100477 is an apocalyptic number.

It is an amenable number.

1311100477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311100477 is an equidigital number, since it uses as much as digits as its factorization.

1311100477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 1311100477 is about 36209.1214613114. The cubic root of 1311100477 is about 1094.4904886165.

The spelling of 1311100477 in words is "one billion, three hundred eleven million, one hundred thousand, four hundred seventy-seven".