1340012001 has 4 divisors (see below), whose sum is σ = 1786682672. Its totient is φ = 893341332.

The previous prime is 1340011999. The next prime is 1340012021. The reversal of 1340012001 is 1002100431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1002100431 = 3 ⋅334033477.

It is not a de Polignac number, because 1340012001 - 2¹ = 1340011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340012021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223335331 + ... + 223335336.

It is an arithmetic number, because the mean of its divisors is an integer number (446670668).

Almost surely, 2^1340012001 is an apocalyptic number.

It is an amenable number.

1340012001 is a deficient number, since it is larger than the sum of its proper divisors (446670671).

1340012001 is an equidigital number, since it uses as much as digits as its factorization.

1340012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446670670.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1340012001 is about 36606.1743562476. The cubic root of 1340012001 is about 1102.4770626806.

Adding to 1340012001 its reverse (1002100431), we get a palindrome (2342112432).

The spelling of 1340012001 in words is "one billion, three hundred forty million, twelve thousand, one".