12402403241 has 4 divisors (see below), whose sum is σ = 12423898452. Its totient is φ = 12380908032.

The previous prime is 12402403217. The next prime is 12402403249. The reversal of 12402403241 is 14230420421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11978208025 + 424195216 = 109445^2 + 20596^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402403241 - 2⁶ = 12402403177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12402403249) 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, 10746740 + ... + 10747893.

It is an arithmetic number, because the mean of its divisors is an integer number (3105974613).

Almost surely, 2^12402403241 is an apocalyptic number.

It is an amenable number.

12402403241 is a deficient number, since it is larger than the sum of its proper divisors (21495211).

12402403241 is an equidigital number, since it uses as much as digits as its factorization.

12402403241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495210.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12402403241 its reverse (14230420421), we get a palindrome (26632823662).

The spelling of 12402403241 in words is "twelve billion, four hundred two million, four hundred three thousand, two hundred forty-one".