1340021043433 has 16 divisors (see below), whose sum is σ = 1365385248000. Its totient is φ = 1314841872960.

The previous prime is 1340021043421. The next prime is 1340021043451. The reversal of 1340021043433 is 3343401200431.

It is a cyclic number.

It is not a de Polignac number, because 1340021043433 - 2¹⁷ = 1340020912361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340021043533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43282243 + ... + 43313191.

It is an arithmetic number, because the mean of its divisors is an integer number (85336578000).

Almost surely, 2^{1340021043433} is an apocalyptic number.

It is an amenable number.

1340021043433 is a deficient number, since it is larger than the sum of its proper divisors (25364204567).

1340021043433 is a wasteful number, since it uses less digits than its factorization.

1340021043433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33912.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1340021043433 its reverse (3343401200431), we get a palindrome (4683422243864).

The spelling of 1340021043433 in words is "one trillion, three hundred forty billion, twenty-one million, forty-three thousand, four hundred thirty-three".