135421432305312 has 48 divisors (see below), whose sum is σ = 355686385027680. Its totient is φ = 45114429787392.

The previous prime is 135421432305259. The next prime is 135421432305319. The reversal of 135421432305312 is 213503234124531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (135421432305319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406827262 + ... + 407159997.

It is an arithmetic number, because the mean of its divisors is an integer number (7410133021410).

Almost surely, 2^{135421432305312} is an apocalyptic number.

135421432305312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135421432305312 is an abundant number, since it is smaller than the sum of its proper divisors (220264952722368).

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

135421432305312 is a wasteful number, since it uses less digits than its factorization.

135421432305312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813989005 (or 813988997 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 135421432305312 its reverse (213503234124531), we get a palindrome (348924666429843).

The spelling of 135421432305312 in words is "one hundred thirty-five trillion, four hundred twenty-one billion, four hundred thirty-two million, three hundred five thousand, three hundred twelve".