631501012 has 12 divisors (see below), whose sum is σ = 1105846560. Its totient is φ = 315544856.

The previous prime is 631501009. The next prime is 631501019. The reversal of 631501012 is 210105136.

631501012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×631501012³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631501019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44398 + ... + 56869.

It is an arithmetic number, because the mean of its divisors is an integer number (92153880).

Almost surely, 2^631501012 is an apocalyptic number.

It is an amenable number.

631501012 is a deficient number, since it is larger than the sum of its proper divisors (474345548).

631501012 is a wasteful number, since it uses less digits than its factorization.

631501012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102830 (or 102828 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 631501012 is about 25129.6838818159. The cubic root of 631501012 is about 857.9421738422.

Adding to 631501012 its reverse (210105136), we get a palindrome (841606148).

The spelling of 631501012 in words is "six hundred thirty-one million, five hundred one thousand, twelve".