631104132413 has 2 divisors, whose sum is σ = 631104132414. Its totient is φ = 631104132412.

The previous prime is 631104132409. The next prime is 631104132431. The reversal of 631104132413 is 314231401136.

It is a happy number.

Together with next prime (631104132431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399086583289 + 232017549124 = 631733^2 + 481682^2 .

It is a cyclic number.

It is not a de Polignac number, because 631104132413 - 2² = 631104132409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631104132433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315552066206 + 315552066207.

It is an arithmetic number, because the mean of its divisors is an integer number (315552066207).

Almost surely, 2^631104132413 is an apocalyptic number.

It is an amenable number.

631104132413 is a deficient number, since it is larger than the sum of its proper divisors (1).

631104132413 is an equidigital number, since it uses as much as digits as its factorization.

631104132413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 631104132413 its reverse (314231401136), we get a palindrome (945335533549).

The spelling of 631104132413 in words is "six hundred thirty-one billion, one hundred four million, one hundred thirty-two thousand, four hundred thirteen".