101631331263 has 16 divisors (see below), whose sum is σ = 168945590016. Its totient is φ = 52795496640.

The previous prime is 101631331253. The next prime is 101631331289. The reversal of 101631331263 is 362133136101.

It is not a de Polignac number, because 101631331263 - 2⁶ = 101631331199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101631331263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101631331253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 219981006 + ... + 219981467.

It is an arithmetic number, because the mean of its divisors is an integer number (10559099376).

Almost surely, 2^101631331263 is an apocalyptic number.

101631331263 is a deficient number, since it is larger than the sum of its proper divisors (67314258753).

101631331263 is a wasteful number, since it uses less digits than its factorization.

101631331263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439962494.

The product of its (nonzero) digits is 5832, while the sum is 30.

Adding to 101631331263 its reverse (362133136101), we get a palindrome (463764467364).

The spelling of 101631331263 in words is "one hundred one billion, six hundred thirty-one million, three hundred thirty-one thousand, two hundred sixty-three".