10203321000 has 64 divisors (see below), whose sum is σ = 31834370880. Its totient is φ = 2720884800.

The previous prime is 10203320999. The next prime is 10203321047. The reversal of 10203321000 is 12330201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1697554 + ... + 1703553.

It is an arithmetic number, because the mean of its divisors is an integer number (497412045).

Almost surely, 2^10203321000 is an apocalyptic number.

10203321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203321000 is an abundant number, since it is smaller than the sum of its proper divisors (21631049880).

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

10203321000 is a wasteful number, since it uses less digits than its factorization.

10203321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401131 (or 3401117 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 10203321000 its reverse (12330201), we get a palindrome (10215651201).

The spelling of 10203321000 in words is "ten billion, two hundred three million, three hundred twenty-one thousand".