1340534522351 has 6 divisors (see below), whose sum is σ = 1424028022320. Its totient is φ = 1261679550176.

The previous prime is 1340534522321. The next prime is 1340534522359. The reversal of 1340534522351 is 1532254350431.

It is a de Polignac number, because none of the positive numbers 2^k-1340534522351 is a prime.

It is a super-3 number, since 3×1340534522351³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340534522359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2319263591 + ... + 2319264168.

It is an arithmetic number, because the mean of its divisors is an integer number (237338003720).

Almost surely, 2^{1340534522351} is an apocalyptic number.

1340534522351 is a deficient number, since it is larger than the sum of its proper divisors (83493499969).

1340534522351 is an equidigital number, since it uses as much as digits as its factorization.

1340534522351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638527793 (or 4638527776 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 1340534522351 its reverse (1532254350431), we get a palindrome (2872788872782).

The spelling of 1340534522351 in words is "one trillion, three hundred forty billion, five hundred thirty-four million, five hundred twenty-two thousand, three hundred fifty-one".