135231212242340 has 24 divisors (see below), whose sum is σ = 296332743349440. Its totient is φ = 51740637727328.

The previous prime is 135231212242309. The next prime is 135231212242351. The reversal of 135231212242340 is 43242212132531.

It is a self number, because there is not a number n which added to its sum of digits gives 135231212242340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146990447630 + ... + 146990448549.

It is an arithmetic number, because the mean of its divisors is an integer number (12347197639560).

Almost surely, 2^{135231212242340} is an apocalyptic number.

135231212242340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135231212242340 is an abundant number, since it is smaller than the sum of its proper divisors (161101531107100).

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

135231212242340 is a wasteful number, since it uses less digits than its factorization.

135231212242340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293980896211 (or 293980896209 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 135231212242340 its reverse (43242212132531), we get a palindrome (178473424374871).

The spelling of 135231212242340 in words is "one hundred thirty-five trillion, two hundred thirty-one billion, two hundred twelve million, two hundred forty-two thousand, three hundred forty".