20120344330 has 64 divisors (see below), whose sum is σ = 37668022272. Its totient is φ = 7731590400.

The previous prime is 20120344207. The next prime is 20120344331. The reversal of 20120344330 is 3344302102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20120344331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22683147 + ... + 22684033.

It is an arithmetic number, because the mean of its divisors is an integer number (588562848).

Almost surely, 2^20120344330 is an apocalyptic number.

20120344330 is a deficient number, since it is larger than the sum of its proper divisors (17547677942).

20120344330 is a wasteful number, since it uses less digits than its factorization.

20120344330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20120344330 its reverse (3344302102), we get a palindrome (23464646432).

The spelling of 20120344330 in words is "twenty billion, one hundred twenty million, three hundred forty-four thousand, three hundred thirty".