31520130006 has 8 divisors (see below), whose sum is σ = 63040260024. Its totient is φ = 10506710000.

The previous prime is 31520130001. The next prime is 31520130007. The reversal of 31520130006 is 60003102513.

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

31520130006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31520130001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626677495 + ... + 2626677506.

It is an arithmetic number, because the mean of its divisors is an integer number (7880032503).

Almost surely, 2^31520130006 is an apocalyptic number.

31520130006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31520130006 is a wasteful number, since it uses less digits than its factorization.

31520130006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253355006.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 31520130006 its reverse (60003102513), we get a palindrome (91523232519).

The spelling of 31520130006 in words is "thirty-one billion, five hundred twenty million, one hundred thirty thousand, six".