263242101 has 4 divisors (see below), whose sum is σ = 350989472. Its totient is φ = 175494732.

The previous prime is 263242081. The next prime is 263242103. The reversal of 263242101 is 101242362.

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 not a de Polignac number, because 263242101 - 2⁶ = 263242037 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 (263242103) 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, 43873681 + ... + 43873686.

It is an arithmetic number, because the mean of its divisors is an integer number (87747368).

Almost surely, 2^263242101 is an apocalyptic number.

It is an amenable number.

263242101 is a deficient number, since it is larger than the sum of its proper divisors (87747371).

263242101 is an equidigital number, since it uses as much as digits as its factorization.

263242101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87747370.

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

The square root of 263242101 is about 16224.7373168258. The cubic root of 263242101 is about 640.8923919853.

Adding to 263242101 its reverse (101242362), we get a palindrome (364484463).

The spelling of 263242101 in words is "two hundred sixty-three million, two hundred forty-two thousand, one hundred one".