20115230334 has 32 divisors (see below), whose sum is σ = 41227068960. Its totient is φ = 6539097600.

The previous prime is 20115230321. The next prime is 20115230339. The reversal of 20115230334 is 43303251102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115230339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716604 + ... + 744144.

It is an arithmetic number, because the mean of its divisors is an integer number (1288345905).

Almost surely, 2^20115230334 is an apocalyptic number.

20115230334 is an abundant number, since it is smaller than the sum of its proper divisors (21111838626).

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

20115230334 is a wasteful number, since it uses less digits than its factorization.

20115230334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30556.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20115230334 its reverse (43303251102), we get a palindrome (63418481436).

The spelling of 20115230334 in words is "twenty billion, one hundred fifteen million, two hundred thirty thousand, three hundred thirty-four".