11030135861 has 2 divisors, whose sum is σ = 11030135862. Its totient is φ = 11030135860.

The previous prime is 11030135771. The next prime is 11030135869. The reversal of 11030135861 is 16853103011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8885890225 + 2144245636 = 94265^2 + 46306^2 .

It is an emirp because it is prime and its reverse (16853103011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11030135861 is a prime.

It is a super-2 number, since 2×11030135861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11030135869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515067930 + 5515067931.

It is an arithmetic number, because the mean of its divisors is an integer number (5515067931).

Almost surely, 2^11030135861 is an apocalyptic number.

It is an amenable number.

11030135861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030135861 is an equidigital number, since it uses as much as digits as its factorization.

11030135861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

Adding to 11030135861 its reverse (16853103011), we get a palindrome (27883238872).

The spelling of 11030135861 in words is "eleven billion, thirty million, one hundred thirty-five thousand, eight hundred sixty-one".