20312240330 has 16 divisors (see below), whose sum is σ = 36577626624. Its totient is φ = 8121430800.

The previous prime is 20312240327. The next prime is 20312240359. The reversal of 20312240330 is 3304221302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408482 + ... + 455501.

It is an arithmetic number, because the mean of its divisors is an integer number (2286101664).

Almost surely, 2^20312240330 is an apocalyptic number.

20312240330 is a deficient number, since it is larger than the sum of its proper divisors (16265386294).

20312240330 is a wasteful number, since it uses less digits than its factorization.

20312240330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866341.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20312240330 its reverse (3304221302), we get a palindrome (23616461632).

The spelling of 20312240330 in words is "twenty billion, three hundred twelve million, two hundred forty thousand, three hundred thirty".