1340540112251 has 4 divisors (see below), whose sum is σ = 1350325076712. Its totient is φ = 1330755147792.

The previous prime is 1340540112211. The next prime is 1340540112293. The reversal of 1340540112251 is 1522110450431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1340540112251 - 2³⁴ = 1323360243067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340540112211) 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 3 ways as a sum of consecutive naturals, for example, 4892482025 + ... + 4892482298.

It is an arithmetic number, because the mean of its divisors is an integer number (337581269178).

Almost surely, 2^{1340540112251} is an apocalyptic number.

1340540112251 is a deficient number, since it is larger than the sum of its proper divisors (9784964461).

1340540112251 is an equidigital number, since it uses as much as digits as its factorization.

1340540112251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784964460.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1340540112251 its reverse (1522110450431), we get a palindrome (2862650562682).

The spelling of 1340540112251 in words is "one trillion, three hundred forty billion, five hundred forty million, one hundred twelve thousand, two hundred fifty-one".