31528023106 has 8 divisors (see below), whose sum is σ = 47462764860. Its totient is φ = 15707101488.

The previous prime is 31528023067. The next prime is 31528023127. The reversal of 31528023106 is 60132082513.

It can be written as a sum of positive squares in 2 ways, for example, as 29237922081 + 2290101025 = 170991^2 + 47855^2 .

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28454341 + ... + 28455448.

Almost surely, 2^31528023106 is an apocalyptic number.

31528023106 is a deficient number, since it is larger than the sum of its proper divisors (15934741754).

31528023106 is a wasteful number, since it uses less digits than its factorization.

31528023106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56910068.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 31528023106 in words is "thirty-one billion, five hundred twenty-eight million, twenty-three thousand, one hundred six".