20115332242 has 16 divisors (see below), whose sum is σ = 30219761880. Its totient is φ = 10042092928.

The previous prime is 20115332231. The next prime is 20115332267. The reversal of 20115332242 is 24223351102.

It can be written as a sum of positive squares in 4 ways, for example, as 19446023601 + 669308641 = 139449^2 + 25871^2 .

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, 4836828 + ... + 4840984.

Almost surely, 2^20115332242 is an apocalyptic number.

20115332242 is a deficient number, since it is larger than the sum of its proper divisors (10104429638).

20115332242 is a wasteful number, since it uses less digits than its factorization.

20115332242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20115332242 its reverse (24223351102), we get a palindrome (44338683344).

The spelling of 20115332242 in words is "twenty billion, one hundred fifteen million, three hundred thirty-two thousand, two hundred forty-two".