263011242413 has 4 divisors (see below), whose sum is σ = 263014744668. Its totient is φ = 263007740160.

The previous prime is 263011242397. The next prime is 263011242451. The reversal of 263011242413 is 314242110362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314242110362 = 2 ⋅157121055181.

It can be written as a sum of positive squares in 2 ways, for example, as 235692772324 + 27318470089 = 485482^2 + 165283^2 .

It is a cyclic number.

It is not a de Polignac number, because 263011242413 - 2⁴ = 263011242397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263011242463) 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, 1635956 + ... + 1789517.

It is an arithmetic number, because the mean of its divisors is an integer number (65753686167).

Almost surely, 2^263011242413 is an apocalyptic number.

It is an amenable number.

263011242413 is a deficient number, since it is larger than the sum of its proper divisors (3502255).

263011242413 is an equidigital number, since it uses as much as digits as its factorization.

263011242413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502254.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 263011242413 its reverse (314242110362), we get a palindrome (577253352775).

The spelling of 263011242413 in words is "two hundred sixty-three billion, eleven million, two hundred forty-two thousand, four hundred thirteen".