135121346312 has 32 divisors (see below), whose sum is σ = 266985391680. Its totient is φ = 63983409600.

The previous prime is 135121346299. The next prime is 135121346357. The reversal of 135121346312 is 213643121531.

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, 3616838 + ... + 3654005.

It is an arithmetic number, because the mean of its divisors is an integer number (8343293490).

Almost surely, 2^135121346312 is an apocalyptic number.

It is an amenable number.

135121346312 is a deficient number, since it is larger than the sum of its proper divisors (131864045368).

135121346312 is a wasteful number, since it uses less digits than its factorization.

135121346312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270973 (or 7270969 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

Adding to 135121346312 its reverse (213643121531), we get a palindrome (348764467843).

The spelling of 135121346312 in words is "one hundred thirty-five billion, one hundred twenty-one million, three hundred forty-six thousand, three hundred twelve".