260312541221 has 4 divisors (see below), whose sum is σ = 260565027744. Its totient is φ = 260060054700.

The previous prime is 260312541217. The next prime is 260312541227. The reversal of 260312541221 is 122145213062.

260312541221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 260312541221 - 2² = 260312541217 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 (260312541227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126241715 + ... + 126243776.

It is an arithmetic number, because the mean of its divisors is an integer number (65141256936).

Almost surely, 2^260312541221 is an apocalyptic number.

It is an amenable number.

260312541221 is a deficient number, since it is larger than the sum of its proper divisors (252486523).

260312541221 is a wasteful number, since it uses less digits than its factorization.

260312541221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252486522.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 260312541221 its reverse (122145213062), we get a palindrome (382457754283).

The spelling of 260312541221 in words is "two hundred sixty billion, three hundred twelve million, five hundred forty-one thousand, two hundred twenty-one".