263260121 has 4 divisors (see below), whose sum is σ = 263721744. Its totient is φ = 262798500.

The previous prime is 263260117. The next prime is 263260163. The reversal of 263260121 is 121062362.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121062362 = 2 ⋅60531181.

It is a cyclic number.

It is not a de Polignac number, because 263260121 - 2² = 263260117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263260111) 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, 229955 + ... + 231096.

It is an arithmetic number, because the mean of its divisors is an integer number (65930436).

Almost surely, 2^263260121 is an apocalyptic number.

It is an amenable number.

263260121 is a deficient number, since it is larger than the sum of its proper divisors (461623).

263260121 is an equidigital number, since it uses as much as digits as its factorization.

263260121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461622.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 263260121 is about 16225.2926321839. The cubic root of 263260121 is about 640.9070155547.

The spelling of 263260121 in words is "two hundred sixty-three million, two hundred sixty thousand, one hundred twenty-one".