20111332452 has 48 divisors (see below), whose sum is σ = 49719241152. Its totient is φ = 6305320960.

The previous prime is 20111332427. The next prime is 20111332487. The reversal of 20111332452 is 25423311102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289108 + ... + 351860.

It is an arithmetic number, because the mean of its divisors is an integer number (1035817524).

Almost surely, 2^20111332452 is an apocalyptic number.

It is an amenable number.

20111332452 is an abundant number, since it is smaller than the sum of its proper divisors (29607908700).

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

20111332452 is a wasteful number, since it uses less digits than its factorization.

20111332452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64348 (or 64346 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20111332452 its reverse (25423311102), we get a palindrome (45534643554).

The spelling of 20111332452 in words is "twenty billion, one hundred eleven million, three hundred thirty-two thousand, four hundred fifty-two".