23012020000 has 120 divisors (see below), whose sum is σ = 56735585676. Its totient is φ = 9184896000.

The previous prime is 23012019971. The next prime is 23012020001. The reversal of 23012020000 is 2021032.

It can be written as a sum of positive squares in 10 ways, for example, as 7001672976 + 16010347024 = 83676^2 + 126532^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (23012020001) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 12259062 + ... + 12260938.

Almost surely, 2^23012020000 is an apocalyptic number.

23012020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23012020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28367792838).

23012020000 is an abundant number, since it is smaller than the sum of its proper divisors (33723565676).

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

23012020000 is an equidigital number, since it uses as much as digits as its factorization.

23012020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 23012020000 its reverse (2021032), we get a palindrome (23014041032).

The spelling of 23012020000 in words is "twenty-three billion, twelve million, twenty thousand".