1340324121 has 4 divisors (see below), whose sum is σ = 1787098832. Its totient is φ = 893549412.

The previous prime is 1340324119. The next prime is 1340324123. The reversal of 1340324121 is 1214230431.

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 an interprime number because it is at equal distance from previous prime (1340324119) and next prime (1340324123).

It is not a de Polignac number, because 1340324121 - 2¹ = 1340324119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340324123) 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, 223387351 + ... + 223387356.

It is an arithmetic number, because the mean of its divisors is an integer number (446774708).

Almost surely, 2^1340324121 is an apocalyptic number.

It is an amenable number.

1340324121 is a deficient number, since it is larger than the sum of its proper divisors (446774711).

1340324121 is an equidigital number, since it uses as much as digits as its factorization.

1340324121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446774710.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1340324121 is about 36610.4373232552. The cubic root of 1340324121 is about 1102.5626535627.

Adding to 1340324121 its reverse (1214230431), we get a palindrome (2554554552).

The spelling of 1340324121 in words is "one billion, three hundred forty million, three hundred twenty-four thousand, one hundred twenty-one".