20343130220 has 24 divisors (see below), whose sum is σ = 48823512864. Its totient is φ = 6974787456.

The previous prime is 20343130219. The next prime is 20343130237. The reversal of 20343130220 is 2203134302.

It is a super-3 number, since 3×20343130220³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20343130192 and 20343130201.

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, 72653897 + ... + 72654176.

It is an arithmetic number, because the mean of its divisors is an integer number (2034313036).

Almost surely, 2^20343130220 is an apocalyptic number.

20343130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343130220 is an abundant number, since it is smaller than the sum of its proper divisors (28480382644).

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

20343130220 is a wasteful number, since it uses less digits than its factorization.

20343130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145308089 (or 145308087 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20343130220 its reverse (2203134302), we get a palindrome (22546264522).

The spelling of 20343130220 in words is "twenty billion, three hundred forty-three million, one hundred thirty thousand, two hundred twenty".