10131002320 has 40 divisors (see below), whose sum is σ = 23676660936. Its totient is φ = 4031397888.

The previous prime is 10131002317. The next prime is 10131002347. The reversal of 10131002320 is 2320013101.

It can be written as a sum of positive squares in 4 ways, for example, as 556771216 + 9574231104 = 23596^2 + 97848^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 10131002320.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 312637 + ... + 343516.

Almost surely, 2^10131002320 is an apocalyptic number.

10131002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131002320 is an abundant number, since it is smaller than the sum of its proper divisors (13545658616).

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

10131002320 is a wasteful number, since it uses less digits than its factorization.

10131002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656359 (or 656353 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10131002320 its reverse (2320013101), we get a palindrome (12451015421).

The spelling of 10131002320 in words is "ten billion, one hundred thirty-one million, two thousand, three hundred twenty".