135435102123 has 12 divisors (see below), whose sum is σ = 188772809960. Its totient is φ = 86364411936.

The previous prime is 135435102119. The next prime is 135435102137. The reversal of 135435102123 is 321201534531.

It is not a de Polignac number, because 135435102123 - 2² = 135435102119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135435102113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42668578 + ... + 42671751.

Almost surely, 2^135435102123 is an apocalyptic number.

135435102123 is a deficient number, since it is larger than the sum of its proper divisors (53337707837).

135435102123 is an equidigital number, since it uses as much as digits as its factorization.

135435102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85340378 (or 85340355 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 135435102123 its reverse (321201534531), we get a palindrome (456636636654).

The spelling of 135435102123 in words is "one hundred thirty-five billion, four hundred thirty-five million, one hundred two thousand, one hundred twenty-three".