1201131344000 has 128 divisors (see below), whose sum is σ = 3412929237120. Its totient is φ = 411816422400.

The previous prime is 1201131343957. The next prime is 1201131344027. The reversal of 1201131344000 is 4431311021.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5250194 + ... + 5474193.

It is an arithmetic number, because the mean of its divisors is an integer number (26663509665).

Almost surely, 2^{1201131344000} is an apocalyptic number.

1201131344000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201131344000 is an abundant number, since it is smaller than the sum of its proper divisors (2211797893120).

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

1201131344000 is an equidigital number, since it uses as much as digits as its factorization.

1201131344000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724423 (or 10724401 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1201131344000 its reverse (4431311021), we get a palindrome (1205562655021).

The spelling of 1201131344000 in words is "one trillion, two hundred one billion, one hundred thirty-one million, three hundred forty-four thousand".