1311420110202 has 48 divisors (see below), whose sum is σ = 2875580248320. Its totient is φ = 431890785216.

The previous prime is 1311420110183. The next prime is 1311420110207. The reversal of 1311420110202 is 2020110241131.

1311420110202 is a `hidden beast` number, since 1 + 31 + 1 + 420 + 1 + 10 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1311420110207) 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 23 ways as a sum of consecutive naturals, for example, 1736343 + ... + 2374389.

It is an arithmetic number, because the mean of its divisors is an integer number (59907921840).

Almost surely, 2^{1311420110202} is an apocalyptic number.

1311420110202 is an abundant number, since it is smaller than the sum of its proper divisors (1564160138118).

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

1311420110202 is a wasteful number, since it uses less digits than its factorization.

1311420110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639427 (or 639424 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1311420110202 its reverse (2020110241131), we get a palindrome (3331530351333).

The spelling of 1311420110202 in words is "one trillion, three hundred eleven billion, four hundred twenty million, one hundred ten thousand, two hundred two".