256212350423231 has 4 divisors (see below), whose sum is σ = 256213943340264. Its totient is φ = 256210757506200.

The previous prime is 256212350423201. The next prime is 256212350423303. The reversal of 256212350423231 is 132324053212652.

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 256212350423231 - 2⁶ = 256212350423167 is a prime.

It is a super-2 number, since 2×256212350423231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256212350423201) 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, 796217225 + ... + 796538946.

It is an arithmetic number, because the mean of its divisors is an integer number (64053485835066).

Almost surely, 2^{256212350423231} is an apocalyptic number.

256212350423231 is a deficient number, since it is larger than the sum of its proper divisors (1592917033).

256212350423231 is a wasteful number, since it uses less digits than its factorization.

256212350423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592917032.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 256212350423231 in words is "two hundred fifty-six trillion, two hundred twelve billion, three hundred fifty million, four hundred twenty-three thousand, two hundred thirty-one".