10310021320 has 16 divisors (see below), whose sum is σ = 23197548060. Its totient is φ = 4124008512.

The previous prime is 10310021311. The next prime is 10310021347. The reversal of 10310021320 is 2312001301.

It can be written as a sum of positive squares in 2 ways, for example, as 10197364324 + 112656996 = 100982^2 + 10614^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10310021320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128875227 + ... + 128875306.

Almost surely, 2^10310021320 is an apocalyptic number.

10310021320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10310021320 is an abundant number, since it is smaller than the sum of its proper divisors (12887526740).

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

10310021320 is a wasteful number, since it uses less digits than its factorization.

10310021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257750544 (or 257750540 counting only the distinct ones).

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

Adding to 10310021320 its reverse (2312001301), we get a palindrome (12622022621).

The spelling of 10310021320 in words is "ten billion, three hundred ten million, twenty-one thousand, three hundred twenty".