631212432430 has 16 divisors (see below), whose sum is σ = 1195981451280. Its totient is φ = 239196290112.

The previous prime is 631212432407. The next prime is 631212432443. The reversal of 631212432430 is 34234212136.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 631212432392 and 631212432401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661085159 + ... + 1661085538.

It is an arithmetic number, because the mean of its divisors is an integer number (74748840705).

Almost surely, 2^631212432430 is an apocalyptic number.

631212432430 is a deficient number, since it is larger than the sum of its proper divisors (564769018850).

631212432430 is a wasteful number, since it uses less digits than its factorization.

631212432430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322170723.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 631212432430 its reverse (34234212136), we get a palindrome (665446644566).

The spelling of 631212432430 in words is "six hundred thirty-one billion, two hundred twelve million, four hundred thirty-two thousand, four hundred thirty".