2113401220 has 48 divisors (see below), whose sum is σ = 5076062208. Its totient is φ = 724037760.

The previous prime is 2113401203. The next prime is 2113401221. The reversal of 2113401220 is 221043112.

It is a junction number, because it is equal to n+sod(n) for n = 2113401194 and 2113401203.

It is not an unprimeable number, because it can be changed into a prime (2113401221) 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, 203965 + ... + 214075.

It is an arithmetic number, because the mean of its divisors is an integer number (105751296).

Almost surely, 2^2113401220 is an apocalyptic number.

2113401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113401220 is an abundant number, since it is smaller than the sum of its proper divisors (2962660988).

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

2113401220 is a wasteful number, since it uses less digits than its factorization.

2113401220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11620 (or 11618 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2113401220 is about 45971.7437128504. The cubic root of 2113401220 is about 1283.2974105122.

Adding to 2113401220 its reverse (221043112), we get a palindrome (2334444332).

The spelling of 2113401220 in words is "two billion, one hundred thirteen million, four hundred one thousand, two hundred twenty".