20310220332 has 18 divisors (see below), whose sum is σ = 51339723708. Its totient is φ = 6770073432.

The previous prime is 20310220321. The next prime is 20310220349. The reversal of 20310220332 is 23302201302.

It is a happy number.

20310220332 is a `hidden beast` number, since 2 + 0 + 310 + 2 + 20 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282086358 + ... + 282086429.

Almost surely, 2^20310220332 is an apocalyptic number.

It is an amenable number.

20310220332 is an abundant number, since it is smaller than the sum of its proper divisors (31029503376).

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

20310220332 is a wasteful number, since it uses less digits than its factorization.

20310220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564172797 (or 564172792 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20310220332 its reverse (23302201302), we get a palindrome (43612421634).

The spelling of 20310220332 in words is "twenty billion, three hundred ten million, two hundred twenty thousand, three hundred thirty-two".