631513104142 has 8 divisors (see below), whose sum is σ = 947273203296. Its totient is φ = 315755369712.

The previous prime is 631513104139. The next prime is 631513104163. The reversal of 631513104142 is 241401315136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427578 + ... + 1202434.

It is an arithmetic number, because the mean of its divisors is an integer number (118409150412).

Almost surely, 2^631513104142 is an apocalyptic number.

631513104142 is a deficient number, since it is larger than the sum of its proper divisors (315760099154).

631513104142 is a wasteful number, since it uses less digits than its factorization.

631513104142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182362.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 631513104142 its reverse (241401315136), we get a palindrome (872914419278).

The spelling of 631513104142 in words is "six hundred thirty-one billion, five hundred thirteen million, one hundred four thousand, one hundred forty-two".