10303321072 has 20 divisors (see below), whose sum is σ = 21777474456. Its totient is φ = 4683327680.

The previous prime is 10303321003. The next prime is 10303321073. The reversal of 10303321072 is 27012330301.

It is a happy number.

It is a super-2 number, since 2×10303321072² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303321073) 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, 29270623 + ... + 29270974.

Almost surely, 2^10303321072 is an apocalyptic number.

It is an amenable number.

10303321072 is an abundant number, since it is smaller than the sum of its proper divisors (11474153384).

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

10303321072 is a wasteful number, since it uses less digits than its factorization.

10303321072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58541616 (or 58541610 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 10303321072 its reverse (27012330301), we get a palindrome (37315651373).

The spelling of 10303321072 in words is "ten billion, three hundred three million, three hundred twenty-one thousand, seventy-two".