31738950127 has 2 divisors, whose sum is σ = 31738950128. Its totient is φ = 31738950126.

The previous prime is 31738950097. The next prime is 31738950143. The reversal of 31738950127 is 72105983713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31738950127 - 2³¹ = 29591466479 is a prime.

It is a super-2 number, since 2×31738950127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31738950227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15869475063 + 15869475064.

It is an arithmetic number, because the mean of its divisors is an integer number (15869475064).

Almost surely, 2^31738950127 is an apocalyptic number.

31738950127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31738950127 is an equidigital number, since it uses as much as digits as its factorization.

31738950127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 31738950127 in words is "thirty-one billion, seven hundred thirty-eight million, nine hundred fifty thousand, one hundred twenty-seven".