1340451203 has 32 divisors (see below), whose sum is σ = 1689609600. Its totient is φ = 1056706560.

The previous prime is 1340451163. The next prime is 1340451257. The reversal of 1340451203 is 3021540431.

It is not a de Polignac number, because 1340451203 - 2¹⁶ = 1340385667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340451403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322851 + ... + 2323427.

It is an arithmetic number, because the mean of its divisors is an integer number (52800300).

Almost surely, 2^1340451203 is an apocalyptic number.

1340451203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1340451203 is a deficient number, since it is larger than the sum of its proper divisors (349158397).

1340451203 is an equidigital number, since it uses as much as digits as its factorization.

1340451203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1340451203 is about 36612.1728800682. The cubic root of 1340451203 is about 1102.5974987261.

Adding to 1340451203 its reverse (3021540431), we get a palindrome (4361991634).

The spelling of 1340451203 in words is "one billion, three hundred forty million, four hundred fifty-one thousand, two hundred three".