31420635043005 has 160 divisors (see below), whose sum is σ = 62739363456000. Its totient is φ = 14939594588160.

The previous prime is 31420635043003. The next prime is 31420635043151. The reversal of 31420635043005 is 50034053602413.

31420635043005 is a `hidden beast` number, since 3 + 14 + 2 + 0 + 635 + 0 + 4 + 3 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 31420635043005 - 2¹ = 31420635043003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420635043003) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 81251389 + ... + 81637181.

It is an arithmetic number, because the mean of its divisors is an integer number (392121021600).

Almost surely, 2^{31420635043005} is an apocalyptic number.

It is an amenable number.

31420635043005 is a deficient number, since it is larger than the sum of its proper divisors (31318728412995).

31420635043005 is a wasteful number, since it uses less digits than its factorization.

31420635043005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386353 (or 386344 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 31420635043005 its reverse (50034053602413), we get a palindrome (81454688645418).

The spelling of 31420635043005 in words is "thirty-one trillion, four hundred twenty billion, six hundred thirty-five million, forty-three thousand, five".