135201221342 has 16 divisors (see below), whose sum is σ = 222980401152. Its totient is φ = 60971200920.

The previous prime is 135201221321. The next prime is 135201221369. The reversal of 135201221342 is 243122102531.

It is a congruent number.

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, 24192128 + ... + 24197715.

It is an arithmetic number, because the mean of its divisors is an integer number (13936275072).

Almost surely, 2^135201221342 is an apocalyptic number.

135201221342 is a deficient number, since it is larger than the sum of its proper divisors (87779179810).

135201221342 is a wasteful number, since it uses less digits than its factorization.

135201221342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48389983.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 135201221342 its reverse (243122102531), we get a palindrome (378323323873).

The spelling of 135201221342 in words is "one hundred thirty-five billion, two hundred one million, two hundred twenty-one thousand, three hundred forty-two".