1340314401421 has 8 divisors (see below), whose sum is σ = 1419634469880. Its totient is φ = 1261047449088.

The previous prime is 1340314401403. The next prime is 1340314401479. The reversal of 1340314401421 is 1241044130431.

It can be written as a sum of positive squares in 4 ways, for example, as 195608196 + 1340118793225 = 13986^2 + 1157635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340314401421 - 2³⁵ = 1305954663053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340314401421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340314401121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13227066 + ... + 13328011.

It is an arithmetic number, because the mean of its divisors is an integer number (177454308735).

Almost surely, 2^{1340314401421} is an apocalyptic number.

It is an amenable number.

1340314401421 is a deficient number, since it is larger than the sum of its proper divisors (79320068459).

1340314401421 is a wasteful number, since it uses less digits than its factorization.

1340314401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26558063.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1340314401421 its reverse (1241044130431), we get a palindrome (2581358531852).

The spelling of 1340314401421 in words is "one trillion, three hundred forty billion, three hundred fourteen million, four hundred one thousand, four hundred twenty-one".