31648129127 has 2 divisors, whose sum is σ = 31648129128. Its totient is φ = 31648129126.

The previous prime is 31648129081. The next prime is 31648129147. The reversal of 31648129127 is 72192184613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31648129127 - 2²⁰ = 31647080551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31648129147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15824064563 + 15824064564.

It is an arithmetic number, because the mean of its divisors is an integer number (15824064564).

Almost surely, 2^31648129127 is an apocalyptic number.

31648129127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31648129127 is an equidigital number, since it uses as much as digits as its factorization.

31648129127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The spelling of 31648129127 in words is "thirty-one billion, six hundred forty-eight million, one hundred twenty-nine thousand, one hundred twenty-seven".