20102321330 has 64 divisors (see below), whose sum is σ = 47154078720. Its totient is φ = 5987810304.

The previous prime is 20102321303. The next prime is 20102321353. The reversal of 20102321330 is 3312320102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20102321299 and 20102321308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634250 + ... + 665189.

It is an arithmetic number, because the mean of its divisors is an integer number (736782480).

Almost surely, 2^20102321330 is an apocalyptic number.

20102321330 is an abundant number, since it is smaller than the sum of its proper divisors (27051757390).

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

20102321330 is a wasteful number, since it uses less digits than its factorization.

20102321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299483.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20102321330 its reverse (3312320102), we get a palindrome (23414641432).

The spelling of 20102321330 in words is "twenty billion, one hundred two million, three hundred twenty-one thousand, three hundred thirty".