20130120000 has 840 divisors, whose sum is σ = 79428949600. Its totient is φ = 5038848000.

The previous prime is 20130119969. The next prime is 20130120011. The reversal of 20130120000 is 2103102.

It is a happy number.

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 119 ways as a sum of consecutive naturals, for example, 184679946 + ... + 184680054.

Almost surely, 2^20130120000 is an apocalyptic number.

20130120000 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 20130120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39714474800).

20130120000 is an abundant number, since it is smaller than the sum of its proper divisors (59298829600).

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

20130120000 is an equidigital number, since it uses as much as digits as its factorization.

20130120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 138 counting only the distinct ones).

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

Adding to 20130120000 its reverse (2103102), we get a palindrome (20132223102).

The spelling of 20130120000 in words is "twenty billion, one hundred thirty million, one hundred twenty thousand".