1311420412 has 12 divisors (see below), whose sum is σ = 2309066536. Its totient is φ = 651687120.

The previous prime is 1311420401. The next prime is 1311420419. The reversal of 1311420412 is 2140241131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311420412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311420419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005039 + ... + 1006342.

Almost surely, 2^1311420412 is an apocalyptic number.

It is an amenable number.

1311420412 is a deficient number, since it is larger than the sum of its proper divisors (997646124).

1311420412 is a wasteful number, since it uses less digits than its factorization.

1311420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011548 (or 2011546 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1311420412 is about 36213.5390703532. The cubic root of 1311420412 is about 1094.5795073052.

Adding to 1311420412 its reverse (2140241131), we get a palindrome (3451661543).

The spelling of 1311420412 in words is "one billion, three hundred eleven million, four hundred twenty thousand, four hundred twelve".