20312023330 has 32 divisors (see below), whose sum is σ = 36947664000. Its totient is φ = 8039160192.

The previous prime is 20312023307. The next prime is 20312023349. The reversal of 20312023330 is 3332021302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20312023298 and 20312023307.

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, 1320021 + ... + 1335319.

It is an arithmetic number, because the mean of its divisors is an integer number (1154614500).

Almost surely, 2^20312023330 is an apocalyptic number.

20312023330 is a deficient number, since it is larger than the sum of its proper divisors (16635640670).

20312023330 is a wasteful number, since it uses less digits than its factorization.

20312023330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16698.

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

Adding to 20312023330 its reverse (3332021302), we get a palindrome (23644044632).

The spelling of 20312023330 in words is "twenty billion, three hundred twelve million, twenty-three thousand, three hundred thirty".