20234043020 has 24 divisors (see below), whose sum is σ = 43479666384. Its totient is φ = 7905393216.

The previous prime is 20234043017. The next prime is 20234043031. The reversal of 20234043020 is 2034043202.

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 = 20234042983 and 20234043001.

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, 11763119 + ... + 11764838.

It is an arithmetic number, because the mean of its divisors is an integer number (1811652766).

Almost surely, 2^20234043020 is an apocalyptic number.

20234043020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20234043020 is an abundant number, since it is smaller than the sum of its proper divisors (23245623364).

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

20234043020 is a wasteful number, since it uses less digits than its factorization.

20234043020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23528009 (or 23528007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20234043020 its reverse (2034043202), we get a palindrome (22268086222).

The spelling of 20234043020 in words is "twenty billion, two hundred thirty-four million, forty-three thousand, twenty".