135420442133442 has 8 divisors (see below), whose sum is σ = 270840884266896. Its totient is φ = 45140147377812.

The previous prime is 135420442133401. The next prime is 135420442133443. The reversal of 135420442133442 is 244331244024531.

It is a sphenic number, since it is the product of 3 distinct primes.

135420442133442 is an admirable number.

It is a super-2 number, since 2×135420442133442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135420442133394 and 135420442133403.

It is not an unprimeable number, because it can be changed into a prime (135420442133443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11285036844448 + ... + 11285036844459.

It is an arithmetic number, because the mean of its divisors is an integer number (33855110533362).

Almost surely, 2^{135420442133442} is an apocalyptic number.

135420442133442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135420442133442 is a wasteful number, since it uses less digits than its factorization.

135420442133442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22570073688912.

The product of its (nonzero) digits is 1105920, while the sum is 42.

Adding to 135420442133442 its reverse (244331244024531), we get a palindrome (379751686157973).

The spelling of 135420442133442 in words is "one hundred thirty-five trillion, four hundred twenty billion, four hundred forty-two million, one hundred thirty-three thousand, four hundred forty-two".