2130123776 has 88 divisors (see below), whose sum is σ = 4806192240. Its totient is φ = 934707200.

The previous prime is 2130123773. The next prime is 2130123803. The reversal of 2130123776 is 6773210312.

It is a tau number, because it is divible by the number of its divisors (88).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130123773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323396 + ... + 329916.

Almost surely, 2^2130123776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130123776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403096120).

2130123776 is an abundant number, since it is smaller than the sum of its proper divisors (2676068464).

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

2130123776 is a wasteful number, since it uses less digits than its factorization.

2130123776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 2130123776 is about 46153.2639799180. The cubic root of 2130123776 is about 1286.6732734619.

The spelling of 2130123776 in words is "two billion, one hundred thirty million, one hundred twenty-three thousand, seven hundred seventy-six".