1241340403 has 4 divisors (see below), whose sum is σ = 1241889760. Its totient is φ = 1240791048.

The previous prime is 1241340379. The next prime is 1241340413. The reversal of 1241340403 is 3040431421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1241340403 - 2⁵ = 1241340371 is a prime.

It is a super-2 number, since 2×1241340403² = 3081851992240404818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241340413) 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, 271275 + ... + 275812.

It is an arithmetic number, because the mean of its divisors is an integer number (310472440).

Almost surely, 2^1241340403 is an apocalyptic number.

1241340403 is a deficient number, since it is larger than the sum of its proper divisors (549357).

1241340403 is an equidigital number, since it uses as much as digits as its factorization.

1241340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549356.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1241340403 is about 35232.6610263829. The cubic root of 1241340403 is about 1074.7240403606.

Adding to 1241340403 its reverse (3040431421), we get a palindrome (4281771824).

The spelling of 1241340403 in words is "one billion, two hundred forty-one million, three hundred forty thousand, four hundred three".