2123547120 has 240 divisors, whose sum is σ = 7451308800. Its totient is φ = 541347840.

The previous prime is 2123547079. The next prime is 2123547121. The reversal of 2123547120 is 217453212.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123547121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1985946 + ... + 1987014.

It is an arithmetic number, because the mean of its divisors is an integer number (31047120).

Almost surely, 2^2123547120 is an apocalyptic number.

2123547120 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 2123547120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3725654400).

2123547120 is an abundant number, since it is smaller than the sum of its proper divisors (5327761680).

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

2123547120 is a wasteful number, since it uses less digits than its factorization.

2123547120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2123547120 is about 46081.9608957779. The cubic root of 2123547120 is about 1285.3477274615.

The spelling of 2123547120 in words is "two billion, one hundred twenty-three million, five hundred forty-seven thousand, one hundred twenty".