20321023330 has 32 divisors (see below), whose sum is σ = 37385375040. Its totient is φ = 7950448320.

The previous prime is 20321023301. The next prime is 20321023357. The reversal of 20321023330 is 3332012302.

It is a happy number.

It is a super-3 number, since 3×20321023330³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20321023298 and 20321023307.

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, 16137 + ... + 202243.

It is an arithmetic number, because the mean of its divisors is an integer number (1168292970).

Almost surely, 2^20321023330 is an apocalyptic number.

20321023330 is a deficient number, since it is larger than the sum of its proper divisors (17064351710).

20321023330 is a wasteful number, since it uses less digits than its factorization.

20321023330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186354.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20321023330 its reverse (3332012302), we get a palindrome (23653035632).

The spelling of 20321023330 in words is "twenty billion, three hundred twenty-one million, twenty-three thousand, three hundred thirty".