31381059606 has 32 divisors (see below), whose sum is σ = 67651997280. Its totient is φ = 9646850304.

The previous prime is 31381059601. The next prime is 31381059607. The reversal of 31381059606 is 60695018313.

It is a happy number.

It is a nialpdrome in base 3 and base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31381059601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98791 + ... + 269298.

It is an arithmetic number, because the mean of its divisors is an integer number (2114124915).

Almost surely, 2^31381059606 is an apocalyptic number.

31381059606 is an abundant number, since it is smaller than the sum of its proper divisors (36270937674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31381059606 is a wasteful number, since it uses less digits than its factorization.

31381059606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369200.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 31381059606 in words is "thirty-one billion, three hundred eighty-one million, fifty-nine thousand, six hundred six".