135338254553123 has 2 divisors, whose sum is σ = 135338254553124. Its totient is φ = 135338254553122.

The previous prime is 135338254553083. The next prime is 135338254553141. The reversal of 135338254553123 is 321355452833531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135338254553123 - 2¹² = 135338254549027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (135338254553923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67669127276561 + 67669127276562.

It is an arithmetic number, because the mean of its divisors is an integer number (67669127276562).

Almost surely, 2^{135338254553123} is an apocalyptic number.

135338254553123 is a deficient number, since it is larger than the sum of its proper divisors (1).

135338254553123 is an equidigital number, since it uses as much as digits as its factorization.

135338254553123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440000, while the sum is 53.

The spelling of 135338254553123 in words is "one hundred thirty-five trillion, three hundred thirty-eight billion, two hundred fifty-four million, five hundred fifty-three thousand, one hundred twenty-three".