2113280172 has 48 divisors (see below), whose sum is σ = 5571753600. Its totient is φ = 692485200.

The previous prime is 2113280171. The next prime is 2113280173. The reversal of 2113280172 is 2710823112.

2113280172 is a `hidden beast` number, since 211 + 3 + 280 + 172 = 666.

It is an interprime number because it is at equal distance from previous prime (2113280171) and next prime (2113280173).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2113280171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159454 + ... + 172197.

It is an arithmetic number, because the mean of its divisors is an integer number (116078200).

Almost surely, 2^2113280172 is an apocalyptic number.

It is an amenable number.

2113280172 is an abundant number, since it is smaller than the sum of its proper divisors (3458473428).

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

2113280172 is a wasteful number, since it uses less digits than its factorization.

2113280172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331723 (or 331715 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 2113280172 is about 45970.4271461556. The cubic root of 2113280172 is about 1283.2729091619.

The spelling of 2113280172 in words is "two billion, one hundred thirteen million, two hundred eighty thousand, one hundred seventy-two".