1201031311308 has 12 divisors (see below), whose sum is σ = 2802406393080. Its totient is φ = 400343770432.

The previous prime is 1201031311303. The next prime is 1201031311331. The reversal of 1201031311308 is 8031131301021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1201031311303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50042971293 + ... + 50042971316.

It is an arithmetic number, because the mean of its divisors is an integer number (233533866090).

Almost surely, 2^{1201031311308} is an apocalyptic number.

It is an amenable number.

1201031311308 is an abundant number, since it is smaller than the sum of its proper divisors (1601375081772).

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

1201031311308 is a wasteful number, since it uses less digits than its factorization.

1201031311308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100085942616 (or 100085942614 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 1201031311308 its reverse (8031131301021), we get a palindrome (9232162612329).

The spelling of 1201031311308 in words is "one trillion, two hundred one billion, thirty-one million, three hundred eleven thousand, three hundred eight".