1340423130212 has 6 divisors (see below), whose sum is σ = 2345740477878. Its totient is φ = 670211565104.

The previous prime is 1340423130199. The next prime is 1340423130217. The reversal of 1340423130212 is 2120313240431.

It can be written as a sum of positive squares in only one way, i.e., 1178840033536 + 161583096676 = 1085744^2 + 401974^2 .

It is not an unprimeable number, because it can be changed into a prime (1340423130217) 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 as a sum of consecutive naturals, namely, 167552891273 + ... + 167552891280.

It is an arithmetic number, because the mean of its divisors is an integer number (390956746313).

Almost surely, 2^{1340423130212} is an apocalyptic number.

It is an amenable number.

1340423130212 is a deficient number, since it is larger than the sum of its proper divisors (1005317347666).

1340423130212 is a wasteful number, since it uses less digits than its factorization.

1340423130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335105782557 (or 335105782555 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1340423130212 its reverse (2120313240431), we get a palindrome (3460736370643).

The spelling of 1340423130212 in words is "one trillion, three hundred forty billion, four hundred twenty-three million, one hundred thirty thousand, two hundred twelve".