155536131323 has 2 divisors, whose sum is σ = 155536131324. Its totient is φ = 155536131322.

The previous prime is 155536131277. The next prime is 155536131337. The reversal of 155536131323 is 323131635551.

155536131323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (323131635551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155536131323 - 2¹⁸ = 155535869179 is a prime.

It is not a weakly prime, because it can be changed into another prime (155536131623) 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, 77768065661 + 77768065662.

It is an arithmetic number, because the mean of its divisors is an integer number (77768065662).

Almost surely, 2^155536131323 is an apocalyptic number.

155536131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

155536131323 is an equidigital number, since it uses as much as digits as its factorization.

155536131323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121500, while the sum is 38.

Adding to 155536131323 its reverse (323131635551), we get a palindrome (478667766874).

The spelling of 155536131323 in words is "one hundred fifty-five billion, five hundred thirty-six million, one hundred thirty-one thousand, three hundred twenty-three".