2113210320 has 80 divisors (see below), whose sum is σ = 7054881792. Its totient is φ = 520174080.

The previous prime is 2113210291. The next prime is 2113210321. The reversal of 2113210320 is 230123112.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2113210320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113210321) 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, 335536 + ... + 341775.

Almost surely, 2^2113210320 is an apocalyptic number.

2113210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113210320 is an abundant number, since it is smaller than the sum of its proper divisors (4941671472).

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

2113210320 is a wasteful number, since it uses less digits than its factorization.

2113210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677340 (or 677334 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2113210320 is about 45969.6673905740. The cubic root of 2113210320 is about 1283.2587699787.

Adding to 2113210320 its reverse (230123112), we get a palindrome (2343333432).

The spelling of 2113210320 in words is "two billion, one hundred thirteen million, two hundred ten thousand, three hundred twenty".