631212221405113 has 16 divisors (see below), whose sum is σ = 703736141472000. Its totient is φ = 562640311372032.

The previous prime is 631212221405093. The next prime is 631212221405119. The reversal of 631212221405113 is 311504122212136.

631212221405113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 631212221405113 - 2²⁵ = 631212187850681 is a prime.

It is a super-3 number, since 3×631212221405113³ (a number of 45 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (631212221405119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301561153 + ... + 303647086.

It is an arithmetic number, because the mean of its divisors is an integer number (43983508842000).

Almost surely, 2^{631212221405113} is an apocalyptic number.

It is an amenable number.

631212221405113 is a deficient number, since it is larger than the sum of its proper divisors (72523920066887).

631212221405113 is a wasteful number, since it uses less digits than its factorization.

631212221405113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605211504.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 631212221405113 its reverse (311504122212136), we get a palindrome (942716343617249).

The spelling of 631212221405113 in words is "six hundred thirty-one trillion, two hundred twelve billion, two hundred twenty-one million, four hundred five thousand, one hundred thirteen".