12020310000 has 150 divisors (see below), whose sum is σ = 42037075080. Its totient is φ = 3205392000.

The previous prime is 12020309981. The next prime is 12020310041. The reversal of 12020310000 is 1302021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (150).

It is a super-2 number, since 2×12020310000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 23221 + ... + 156779.

Almost surely, 2^12020310000 is an apocalyptic number.

12020310000 is a gapful number since it is divisible by the number (10) 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 12020310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21018537540).

12020310000 is an abundant number, since it is smaller than the sum of its proper divisors (30016765080).

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

12020310000 is a wasteful number, since it uses less digits than its factorization.

12020310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133593 (or 133569 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12020310000 its reverse (1302021), we get a palindrome (12021612021).

The spelling of 12020310000 in words is "twelve billion, twenty million, three hundred ten thousand".