631032212 has 12 divisors (see below), whose sum is σ = 1110920160. Its totient is φ = 313626456.

The previous prime is 631032191. The next prime is 631032217. The reversal of 631032212 is 212230136.

It is a happy number.

It is a super-2 number, since 2×631032212² = 796403305163225888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631032217) 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, 471662 + ... + 472997.

It is an arithmetic number, because the mean of its divisors is an integer number (92576680).

Almost surely, 2^631032212 is an apocalyptic number.

It is an amenable number.

631032212 is a deficient number, since it is larger than the sum of its proper divisors (479887948).

631032212 is a wasteful number, since it uses less digits than its factorization.

631032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944830 (or 944828 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 631032212 is about 25120.3545357147. The cubic root of 631032212 is about 857.7298211297.

Adding to 631032212 its reverse (212230136), we get a palindrome (843262348).

The spelling of 631032212 in words is "six hundred thirty-one million, thirty-two thousand, two hundred twelve".