1340502651243 has 24 divisors (see below), whose sum is σ = 2213801559008. Its totient is φ = 765687105792.

The previous prime is 1340502651199. The next prime is 1340502651247. The reversal of 1340502651243 is 3421562050431.

1340502651243 is a `hidden beast` number, since 1 + 3 + 40 + 502 + 65 + 12 + 43 = 666.

It is not a de Polignac number, because 1340502651243 - 2¹⁴ = 1340502634859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340502651198 and 1340502651207.

It is not an unprimeable number, because it can be changed into a prime (1340502651247) 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, 4212046 + ... + 4519107.

Almost surely, 2^{1340502651243} is an apocalyptic number.

1340502651243 is a deficient number, since it is larger than the sum of its proper divisors (873298907765).

1340502651243 is a wasteful number, since it uses less digits than its factorization.

1340502651243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733603 (or 8733600 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 1340502651243 in words is "one trillion, three hundred forty billion, five hundred two million, six hundred fifty-one thousand, two hundred forty-three".