23012200420 has 24 divisors (see below), whose sum is σ = 52718859648. Its totient is φ = 8368072800.

The previous prime is 23012200403. The next prime is 23012200439. The reversal of 23012200420 is 2400221032.

It is a super-2 number, since 2×23012200420² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23012200394 and 23012200403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52300236 + ... + 52300675.

It is an arithmetic number, because the mean of its divisors is an integer number (2196619152).

Almost surely, 2^23012200420 is an apocalyptic number.

23012200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012200420 is an abundant number, since it is smaller than the sum of its proper divisors (29706659228).

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

23012200420 is a wasteful number, since it uses less digits than its factorization.

23012200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104600931 (or 104600929 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23012200420 its reverse (2400221032), we get a palindrome (25412421452).

The spelling of 23012200420 in words is "twenty-three billion, twelve million, two hundred thousand, four hundred twenty".