10203223320 has 80 divisors (see below), whose sum is σ = 34294178160. Its totient is φ = 2720858688.

The previous prime is 10203223297. The next prime is 10203223333. The reversal of 10203223320 is 2332230201.

It is a happy number.

10203223320 is a `hidden beast` number, since 1 + 0 + 20 + 322 + 3 + 320 = 666.

It is a super-2 number, since 2×10203223320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10203223293 and 10203223302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1571332 + ... + 1577811.

It is an arithmetic number, because the mean of its divisors is an integer number (428677227).

Almost surely, 2^10203223320 is an apocalyptic number.

10203223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203223320 is an abundant number, since it is smaller than the sum of its proper divisors (24090954840).

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

10203223320 is a wasteful number, since it uses less digits than its factorization.

10203223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149166 (or 3149153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 10203223320 its reverse (2332230201), we get a palindrome (12535453521).

The spelling of 10203223320 in words is "ten billion, two hundred three million, two hundred twenty-three thousand, three hundred twenty".