1135205623 has 2 divisors, whose sum is σ = 1135205624. Its totient is φ = 1135205622.

The previous prime is 1135205593. The next prime is 1135205627. The reversal of 1135205623 is 3265025311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1135205623 - 2⁹ = 1135205111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1135205591 and 1135205600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135205627) 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, 567602811 + 567602812.

It is an arithmetic number, because the mean of its divisors is an integer number (567602812).

Almost surely, 2^1135205623 is an apocalyptic number.

1135205623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135205623 is an equidigital number, since it uses as much as digits as its factorization.

1135205623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1135205623 is about 33692.8126311829. The cubic root of 1135205623 is about 1043.1774196911.

The spelling of 1135205623 in words is "one billion, one hundred thirty-five million, two hundred five thousand, six hundred twenty-three".