256142010231 has 24 divisors (see below), whose sum is σ = 370661762016. Its totient is φ = 170448187200.

The previous prime is 256142010217. The next prime is 256142010259. The reversal of 256142010231 is 132010241652.

256142010231 is a `hidden beast` number, since 2 + 5 + 6 + 1 + 420 + 1 + 0 + 231 = 666.

It is not a de Polignac number, because 256142010231 - 2⁹ = 256142009719 is a prime.

It is a super-2 number, since 2×256142010231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256142010195 and 256142010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256142010281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38496901 + ... + 38503553.

It is an arithmetic number, because the mean of its divisors is an integer number (15444240084).

Almost surely, 2^256142010231 is an apocalyptic number.

256142010231 is a deficient number, since it is larger than the sum of its proper divisors (114519751785).

256142010231 is a wasteful number, since it uses less digits than its factorization.

256142010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13863 (or 13860 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 256142010231 its reverse (132010241652), we get a palindrome (388152251883).

The spelling of 256142010231 in words is "two hundred fifty-six billion, one hundred forty-two million, ten thousand, two hundred thirty-one".