263131455332 has 12 divisors (see below), whose sum is σ = 466787993196. Its totient is φ = 129763457280.

The previous prime is 263131455287. The next prime is 263131455343. The reversal of 263131455332 is 233554131362.

It can be written as a sum of positive squares in 2 ways, for example, as 136911840256 + 126219615076 = 370016^2 + 355274^2 .

It is a super-2 number, since 2×263131455332² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450567269 + ... + 450567852.

It is an arithmetic number, because the mean of its divisors is an integer number (38898999433).

Almost surely, 2^263131455332 is an apocalyptic number.

It is an amenable number.

263131455332 is a deficient number, since it is larger than the sum of its proper divisors (203656537864).

263131455332 is a wasteful number, since it uses less digits than its factorization.

263131455332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901135198 (or 901135196 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

Adding to 263131455332 its reverse (233554131362), we get a palindrome (496685586694).

The spelling of 263131455332 in words is "two hundred sixty-three billion, one hundred thirty-one million, four hundred fifty-five thousand, three hundred thirty-two".