1201323440134 has 8 divisors (see below), whose sum is σ = 1802046463488. Its totient is φ = 600641285640.

The previous prime is 1201323440081. The next prime is 1201323440143. The reversal of 1201323440134 is 4310443231021.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10143622 + ... + 10261369.

It is an arithmetic number, because the mean of its divisors is an integer number (225255807936).

Almost surely, 2^{1201323440134} is an apocalyptic number.

1201323440134 is a deficient number, since it is larger than the sum of its proper divisors (600723023354).

1201323440134 is a wasteful number, since it uses less digits than its factorization.

1201323440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20434430.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1201323440134 its reverse (4310443231021), we get a palindrome (5511766671155).

The spelling of 1201323440134 in words is "one trillion, two hundred one billion, three hundred twenty-three million, four hundred forty thousand, one hundred thirty-four".