20213302320 has 120 divisors (see below), whose sum is σ = 68583068736. Its totient is φ = 5334626304.

The previous prime is 20213302309. The next prime is 20213302327. The reversal of 20213302320 is 2320331202.

It is a happy number.

20213302320 is a `hidden beast` number, since 20 + 21 + 3 + 302 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 20213302293 and 20213302302.

It is not an unprimeable number, because it can be changed into a prime (20213302327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74872 + ... + 214551.

Almost surely, 2^20213302320 is an apocalyptic number.

20213302320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213302320 is an abundant number, since it is smaller than the sum of its proper divisors (48369766416).

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

20213302320 is a wasteful number, since it uses less digits than its factorization.

20213302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289539 (or 289530 counting only the distinct ones).

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

Adding to 20213302320 its reverse (2320331202), we get a palindrome (22533633522).

The spelling of 20213302320 in words is "twenty billion, two hundred thirteen million, three hundred two thousand, three hundred twenty".