1340020120433 has 4 divisors (see below), whose sum is σ = 1358893643328. Its totient is φ = 1321146597540.

The previous prime is 1340020120403. The next prime is 1340020120501. The reversal of 1340020120433 is 3340210200431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340020120433 - 2²² = 1340015926129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340020120399 and 1340020120408.

It is not an unprimeable number, because it can be changed into a prime (1340020120403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9436761341 + ... + 9436761482.

It is an arithmetic number, because the mean of its divisors is an integer number (339723410832).

Almost surely, 2^{1340020120433} is an apocalyptic number.

It is an amenable number.

1340020120433 is a deficient number, since it is larger than the sum of its proper divisors (18873522895).

1340020120433 is an equidigital number, since it uses as much as digits as its factorization.

1340020120433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873522894.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1340020120433 its reverse (3340210200431), we get a palindrome (4680230320864).

The spelling of 1340020120433 in words is "one trillion, three hundred forty billion, twenty million, one hundred twenty thousand, four hundred thirty-three".