1340041034221 has 4 divisors (see below), whose sum is σ = 1340080459200. Its totient is φ = 1340001609244.

The previous prime is 1340041034207. The next prime is 1340041034251. The reversal of 1340041034221 is 1224301400431.

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 1340041034221 - 2²³ = 1340032645613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340041034251) 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, 19661461 + ... + 19729498.

It is an arithmetic number, because the mean of its divisors is an integer number (335020114800).

Almost surely, 2^{1340041034221} is an apocalyptic number.

It is an amenable number.

1340041034221 is a deficient number, since it is larger than the sum of its proper divisors (39424979).

1340041034221 is an equidigital number, since it uses as much as digits as its factorization.

1340041034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39424978.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1340041034221 its reverse (1224301400431), we get a palindrome (2564342434652).

The spelling of 1340041034221 in words is "one trillion, three hundred forty billion, forty-one million, thirty-four thousand, two hundred twenty-one".