23031212000 has 96 divisors (see below), whose sum is σ = 57138105024. Its totient is φ = 9122880000.

The previous prime is 23031211997. The next prime is 23031212003. The reversal of 23031212000 is 21213032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23031211997) and next prime (23031212003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384050 + ... + 439950.

It is an arithmetic number, because the mean of its divisors is an integer number (595188594).

Almost surely, 2^23031212000 is an apocalyptic number.

23031212000 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 23031212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28569052512).

23031212000 is an abundant number, since it is smaller than the sum of its proper divisors (34106893024).

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

23031212000 is a wasteful number, since it uses less digits than its factorization.

23031212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56029 (or 56011 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23031212000 its reverse (21213032), we get a palindrome (23052425032).

The spelling of 23031212000 in words is "twenty-three billion, thirty-one million, two hundred twelve thousand".