1340550145431 has 12 divisors (see below), whose sum is σ = 2212971668752. Its totient is φ = 766028654496.

The previous prime is 1340550145421. The next prime is 1340550145433. The reversal of 1340550145431 is 1345410550431.

1340550145431 is a `hidden beast` number, since 1 + 3 + 40 + 550 + 14 + 54 + 3 + 1 = 666.

It is not a de Polignac number, because 1340550145431 - 2¹⁴ = 1340550129047 is a prime.

It is a super-2 number, since 2×1340550145431² (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 (1340550145433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10639286806 + ... + 10639286931.

Almost surely, 2^{1340550145431} is an apocalyptic number.

1340550145431 is a deficient number, since it is larger than the sum of its proper divisors (872421523321).

1340550145431 is a wasteful number, since it uses less digits than its factorization.

1340550145431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21278573750 (or 21278573747 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1340550145431 its reverse (1345410550431), we get a palindrome (2685960695862).

The spelling of 1340550145431 in words is "one trillion, three hundred forty billion, five hundred fifty million, one hundred forty-five thousand, four hundred thirty-one".