631611405230 has 32 divisors (see below), whose sum is σ = 1224677319264. Its totient is φ = 233148859776.

The previous prime is 631611405223. The next prime is 631611405247. The reversal of 631611405230 is 32504116136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144389 + ... + 1133168.

It is an arithmetic number, because the mean of its divisors is an integer number (38271166227).

Almost surely, 2^631611405230 is an apocalyptic number.

631611405230 is a deficient number, since it is larger than the sum of its proper divisors (593065914034).

631611405230 is a wasteful number, since it uses less digits than its factorization.

631611405230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281380.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 631611405230 in words is "six hundred thirty-one billion, six hundred eleven million, four hundred five thousand, two hundred thirty".