11555302123 has 2 divisors, whose sum is σ = 11555302124. Its totient is φ = 11555302122.

The previous prime is 11555302093. The next prime is 11555302133. The reversal of 11555302123 is 32120355511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11555302123 - 2⁵ = 11555302091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11555302091 and 11555302100.

It is not a weakly prime, because it can be changed into another prime (11555302133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777651061 + 5777651062.

It is an arithmetic number, because the mean of its divisors is an integer number (5777651062).

Almost surely, 2^11555302123 is an apocalyptic number.

11555302123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555302123 is an equidigital number, since it uses as much as digits as its factorization.

11555302123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 11555302123 its reverse (32120355511), we get a palindrome (43675657634).

The spelling of 11555302123 in words is "eleven billion, five hundred fifty-five million, three hundred two thousand, one hundred twenty-three".