1340538350431 has 24 divisors (see below), whose sum is σ = 1592302423680. Its totient is φ = 1125020074752.

The previous prime is 1340538350401. The next prime is 1340538350471.

1340538350431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1340538350431 - 2¹⁷ = 1340538219359 is a prime.

It is a super-2 number, since 2×1340538350431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340538350401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877711 + ... + 1857808.

It is an arithmetic number, because the mean of its divisors is an integer number (66345934320).

Almost surely, 2^{1340538350431} is an apocalyptic number.

1340538350431 is a deficient number, since it is larger than the sum of its proper divisors (251764073249).

1340538350431 is a wasteful number, since it uses less digits than its factorization.

1340538350431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735743 (or 2735736 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 1340538350431 in words is "one trillion, three hundred forty billion, five hundred thirty-eight million, three hundred fifty thousand, four hundred thirty-one".