1340303525551 has 4 divisors (see below), whose sum is σ = 1340428903704. Its totient is φ = 1340178147400.

The previous prime is 1340303525527. The next prime is 1340303525591. The reversal of 1340303525551 is 1555253030431.

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 1340303525551 - 2¹⁵ = 1340303492783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340303525551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340303525591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62673040 + ... + 62694421.

It is an arithmetic number, because the mean of its divisors is an integer number (335107225926).

Almost surely, 2^{1340303525551} is an apocalyptic number.

1340303525551 is a deficient number, since it is larger than the sum of its proper divisors (125378153).

1340303525551 is a wasteful number, since it uses less digits than its factorization.

1340303525551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125378152.

The product of its (nonzero) digits is 135000, while the sum is 37.

Adding to 1340303525551 its reverse (1555253030431), we get a palindrome (2895556555982).

The spelling of 1340303525551 in words is "one trillion, three hundred forty billion, three hundred three million, five hundred twenty-five thousand, five hundred fifty-one".