20340120000 has 140 divisors (see below), whose sum is σ = 67249579496. Its totient is φ = 5424000000.

The previous prime is 20340119981. The next prime is 20340120019. The reversal of 20340120000 is 2104302.

It is an interprime number because it is at equal distance from previous prime (20340119981) and next prime (20340120019).

It is a super-2 number, since 2×20340120000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 35250 + ... + 204750.

Almost surely, 2^20340120000 is an apocalyptic number.

20340120000 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 20340120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33624789748).

20340120000 is an abundant number, since it is smaller than the sum of its proper divisors (46909459496).

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

20340120000 is an equidigital number, since it uses as much as digits as its factorization.

20340120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169536 (or 169511 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20340120000 its reverse (2104302), we get a palindrome (20342224302).

The spelling of 20340120000 in words is "twenty billion, three hundred forty million, one hundred twenty thousand".