31423106605065 has 32 divisors (see below), whose sum is σ = 58401352240896. Its totient is φ = 14129359407360.

The previous prime is 31423106605003. The next prime is 31423106605067. The reversal of 31423106605065 is 56050660132413.

It is not a de Polignac number, because 31423106605065 - 2¹¹ = 31423106603017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31423106605067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2453007382 + ... + 2453020191.

It is an arithmetic number, because the mean of its divisors is an integer number (1825042257528).

Almost surely, 2^{31423106605065} is an apocalyptic number.

31423106605065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31423106605065 is a deficient number, since it is larger than the sum of its proper divisors (26978245635831).

31423106605065 is a wasteful number, since it uses less digits than its factorization.

31423106605065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906027649.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 31423106605065 its reverse (56050660132413), we get a palindrome (87473766737478).

The spelling of 31423106605065 in words is "thirty-one trillion, four hundred twenty-three billion, one hundred six million, six hundred five thousand, sixty-five".