20100321030 has 16 divisors (see below), whose sum is σ = 48240770544. Its totient is φ = 5360085600.

The previous prime is 20100321001. The next prime is 20100321037. The reversal of 20100321030 is 3012300102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20100320997 and 20100321015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100321037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335005321 + ... + 335005380.

It is an arithmetic number, because the mean of its divisors is an integer number (3015048159).

Almost surely, 2^20100321030 is an apocalyptic number.

20100321030 is an abundant number, since it is smaller than the sum of its proper divisors (28140449514).

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

20100321030 is a wasteful number, since it uses less digits than its factorization.

20100321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670010711.

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

Adding to 20100321030 its reverse (3012300102), we get a palindrome (23112621132).

The spelling of 20100321030 in words is "twenty billion, one hundred million, three hundred twenty-one thousand, thirty".