2154120000 has 280 divisors, whose sum is σ = 7379512800. Its totient is φ = 553728000.

The previous prime is 2154119923. The next prime is 2154120011. The reversal of 2154120000 is 214512.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3479691 + ... + 3480309.

Almost surely, 2^2154120000 is an apocalyptic number.

2154120000 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 2154120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3689756400).

2154120000 is an abundant number, since it is smaller than the sum of its proper divisors (5225392800).

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

2154120000 is an equidigital number, since it uses as much as digits as its factorization.

2154120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2154120000 is about 46412.4983167250. The cubic root of 2154120000 is about 1291.4867780469.

Adding to 2154120000 its reverse (214512), we get a palindrome (2154334512).

The spelling of 2154120000 in words is "two billion, one hundred fifty-four million, one hundred twenty thousand".