135423033223405 has 12 divisors (see below), whose sum is σ = 169880387237820. Its totient is φ = 103628060203712.

The previous prime is 135423033223321. The next prime is 135423033223463. The reversal of 135423033223405 is 504322330324531.

It can be written as a sum of positive squares in 2 ways, for example, as 71375952568041 + 64047080655364 = 8448429^2 + 8002942^2 .

It is a de Polignac number, because none of the positive numbers 2^k-135423033223405 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25599814600 + ... + 25599819889.

It is an arithmetic number, because the mean of its divisors is an integer number (14156698936485).

Almost surely, 2^{135423033223405} is an apocalyptic number.

It is an amenable number.

135423033223405 is a deficient number, since it is larger than the sum of its proper divisors (34457354014415).

135423033223405 is an equidigital number, since it uses as much as digits as its factorization.

135423033223405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51199634540 (or 51199634517 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 40.

Adding to 135423033223405 its reverse (504322330324531), we get a palindrome (639745363547936).

The spelling of 135423033223405 in words is "one hundred thirty-five trillion, four hundred twenty-three billion, thirty-three million, two hundred twenty-three thousand, four hundred five".