31530240165106 has 8 divisors (see below), whose sum is σ = 47295410767344. Its totient is φ = 15765103242660.

The previous prime is 31530240165077. The next prime is 31530240165131. The reversal of 31530240165106 is 60156104203513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5932540 + ... + 9912391.

It is an arithmetic number, because the mean of its divisors is an integer number (5911926345918).

Almost surely, 2^{31530240165106} is an apocalyptic number.

31530240165106 is a deficient number, since it is larger than the sum of its proper divisors (15765170602238).

31530240165106 is a wasteful number, since it uses less digits than its factorization.

31530240165106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16839896.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 31530240165106 its reverse (60156104203513), we get a palindrome (91686344368619).

The spelling of 31530240165106 in words is "thirty-one trillion, five hundred thirty billion, two hundred forty million, one hundred sixty-five thousand, one hundred six".