2113403131 has 8 divisors (see below), whose sum is σ = 2438768384. Its totient is φ = 1793900520.

The previous prime is 2113403107. The next prime is 2113403189. The reversal of 2113403131 is 1313043112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113403131 - 2⁵ = 2113403099 is a prime.

It is a super-3 number, since 3×2113403131³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113403099 and 2113403108.

It is not an unprimeable number, because it can be changed into a prime (2113400131) 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, 1464885 + ... + 1466326.

It is an arithmetic number, because the mean of its divisors is an integer number (304846048).

Almost surely, 2^2113403131 is an apocalyptic number.

2113403131 is a deficient number, since it is larger than the sum of its proper divisors (325365253).

2113403131 is a wasteful number, since it uses less digits than its factorization.

2113403131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931321.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2113403131 is about 45971.7644973521. The cubic root of 2113403131 is about 1283.2977973106.

Adding to 2113403131 its reverse (1313043112), we get a palindrome (3426446243).

The spelling of 2113403131 in words is "two billion, one hundred thirteen million, four hundred three thousand, one hundred thirty-one".