135423323122 has 4 divisors (see below), whose sum is σ = 203134984686. Its totient is φ = 67711661560.

The previous prime is 135423323003. The next prime is 135423323129. The reversal of 135423323122 is 221323324531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126900525361 + 8522797761 = 356231^2 + 92319^2 .

It is not an unprimeable number, because it can be changed into a prime (135423323129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33855830779 + ... + 33855830782.

Almost surely, 2^135423323122 is an apocalyptic number.

135423323122 is a deficient number, since it is larger than the sum of its proper divisors (67711661564).

135423323122 is an equidigital number, since it uses as much as digits as its factorization.

135423323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67711661563.

The product of its digits is 25920, while the sum is 31.

Adding to 135423323122 its reverse (221323324531), we get a palindrome (356746647653).

The spelling of 135423323122 in words is "one hundred thirty-five billion, four hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty-two".