256334131302 has 16 divisors (see below), whose sum is σ = 517371642480. Its totient is φ = 84660813792.

The previous prime is 256334131283. The next prime is 256334131307. The reversal of 256334131302 is 203131433652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256334131307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195973453 + ... + 195974760.

It is an arithmetic number, because the mean of its divisors is an integer number (32335727655).

Almost surely, 2^256334131302 is an apocalyptic number.

256334131302 is an abundant number, since it is smaller than the sum of its proper divisors (261037511178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256334131302 is a wasteful number, since it uses less digits than its factorization.

256334131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391948327.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 256334131302 its reverse (203131433652), we get a palindrome (459465564954).

The spelling of 256334131302 in words is "two hundred fifty-six billion, three hundred thirty-four million, one hundred thirty-one thousand, three hundred two".