255351320011 has 4 divisors (see below), whose sum is σ = 270371985912. Its totient is φ = 240330654112.

The previous prime is 255351319967. The next prime is 255351320027. The reversal of 255351320011 is 110023153552.

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

It is a cyclic number.

It is not a de Polignac number, because 255351320011 - 2¹⁹ = 255350795723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255351320051) 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, 7510332925 + ... + 7510332958.

It is an arithmetic number, because the mean of its divisors is an integer number (67592996478).

Almost surely, 2^255351320011 is an apocalyptic number.

255351320011 is a deficient number, since it is larger than the sum of its proper divisors (15020665901).

255351320011 is a wasteful number, since it uses less digits than its factorization.

255351320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020665900.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 255351320011 its reverse (110023153552), we get a palindrome (365374473563).

The spelling of 255351320011 in words is "two hundred fifty-five billion, three hundred fifty-one million, three hundred twenty thousand, eleven".