20303442252 has 36 divisors (see below), whose sum is σ = 51580510800. Its totient is φ = 6733802592.

The previous prime is 20303442209. The next prime is 20303442253. The reversal of 20303442252 is 25224430302.

It is a happy number.

20303442252 is a `hidden beast` number, since 203 + 0 + 34 + 422 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20303442253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1409883 + ... + 1424210.

Almost surely, 2^20303442252 is an apocalyptic number.

It is an amenable number.

20303442252 is an abundant number, since it is smaller than the sum of its proper divisors (31277068548).

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

20303442252 is a wasteful number, since it uses less digits than its factorization.

20303442252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834302 (or 2834297 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 20303442252 its reverse (25224430302), we get a palindrome (45527872554).

The spelling of 20303442252 in words is "twenty billion, three hundred three million, four hundred forty-two thousand, two hundred fifty-two".