1311430201212 has 24 divisors (see below), whose sum is σ = 3073484002176. Its totient is φ = 435217657648.

The previous prime is 1311430201199. The next prime is 1311430201217. The reversal of 1311430201212 is 2121020341131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311430201217) 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 7 ways as a sum of consecutive naturals, for example, 240715008 + ... + 240720455.

It is an arithmetic number, because the mean of its divisors is an integer number (128061833424).

Almost surely, 2^{1311430201212} is an apocalyptic number.

1311430201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311430201212 is an abundant number, since it is smaller than the sum of its proper divisors (1762053800964).

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

1311430201212 is a wasteful number, since it uses less digits than its factorization.

1311430201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481435697 (or 481435695 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1311430201212 its reverse (2121020341131), we get a palindrome (3432450542343).

The spelling of 1311430201212 in words is "one trillion, three hundred eleven billion, four hundred thirty million, two hundred one thousand, two hundred twelve".