31151320606 has 32 divisors (see below), whose sum is σ = 54142848000. Its totient is φ = 13165824672.

The previous prime is 31151320583. The next prime is 31151320637. The reversal of 31151320606 is 60602315113.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 933660 + ... + 966448.

It is an arithmetic number, because the mean of its divisors is an integer number (1691964000).

Almost surely, 2^31151320606 is an apocalyptic number.

31151320606 is a deficient number, since it is larger than the sum of its proper divisors (22991527394).

31151320606 is a wasteful number, since it uses less digits than its factorization.

31151320606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33736.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 31151320606 its reverse (60602315113), we get a palindrome (91753635719).

The spelling of 31151320606 in words is "thirty-one billion, one hundred fifty-one million, three hundred twenty thousand, six hundred six".