1311402412 has 12 divisors (see below), whose sum is σ = 2297431080. Its totient is φ = 654993536.

The previous prime is 1311402353. The next prime is 1311402437. The reversal of 1311402412 is 2142041131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311402412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172738 + ... + 180169.

It is an arithmetic number, because the mean of its divisors is an integer number (191452590).

Almost surely, 2^1311402412 is an apocalyptic number.

It is an amenable number.

1311402412 is a deficient number, since it is larger than the sum of its proper divisors (986028668).

1311402412 is a wasteful number, since it uses less digits than its factorization.

1311402412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353840 (or 353838 counting only the distinct ones).

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

The square root of 1311402412 is about 36213.2905436664. The cubic root of 1311402412 is about 1094.5744993711.

Adding to 1311402412 its reverse (2142041131), we get a palindrome (3453443543).

The spelling of 1311402412 in words is "one billion, three hundred eleven million, four hundred two thousand, four hundred twelve".