1201340144020 has 12 divisors (see below), whose sum is σ = 2522814302484. Its totient is φ = 480536057600.

The previous prime is 1201340143921. The next prime is 1201340144023. The reversal of 1201340144020 is 204410431021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 575361692676 + 625978451344 = 758526^2 + 791188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201340143982 and 1201340144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201340144023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30033503581 + ... + 30033503620.

It is an arithmetic number, because the mean of its divisors is an integer number (210234525207).

Almost surely, 2^{1201340144020} is an apocalyptic number.

1201340144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201340144020 is an abundant number, since it is smaller than the sum of its proper divisors (1321474158464).

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

1201340144020 is a wasteful number, since it uses less digits than its factorization.

1201340144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60067007210 (or 60067007208 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1201340144020 its reverse (204410431021), we get a palindrome (1405750575041).

The spelling of 1201340144020 in words is "one trillion, two hundred one billion, three hundred forty million, one hundred forty-four thousand, twenty".