31032145143255 has 32 divisors (see below), whose sum is σ = 51320797452288. Its totient is φ = 15995432880000.

The previous prime is 31032145143211. The next prime is 31032145143283. The reversal of 31032145143255 is 55234154123013.

It is not a de Polignac number, because 31032145143255 - 2¹² = 31032145139159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43727121 + ... + 44431130.

It is an arithmetic number, because the mean of its divisors is an integer number (1603774920384).

Almost surely, 2^{31032145143255} is an apocalyptic number.

31032145143255 is a deficient number, since it is larger than the sum of its proper divisors (20288652309033).

31032145143255 is a wasteful number, since it uses less digits than its factorization.

31032145143255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88159047.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 31032145143255 its reverse (55234154123013), we get a palindrome (86266299266268).

The spelling of 31032145143255 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-three thousand, two hundred fifty-five".