2113442431 has 8 divisors (see below), whose sum is σ = 2241585360. Its totient is φ = 1985724288.

The previous prime is 2113442407. The next prime is 2113442459. The reversal of 2113442431 is 1342443112.

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 2113442431 - 2²³ = 2105053823 is a prime.

It is a super-2 number, since 2×2113442431² = 8933277818302379522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113442396 and 2113442405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113442731) 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, 95916 + ... + 115873.

It is an arithmetic number, because the mean of its divisors is an integer number (280198170).

Almost surely, 2^2113442431 is an apocalyptic number.

2113442431 is a deficient number, since it is larger than the sum of its proper divisors (128142929).

2113442431 is a wasteful number, since it uses less digits than its factorization.

2113442431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212393.

The product of its digits is 2304, while the sum is 25.

The square root of 2113442431 is about 45972.1919316449. The cubic root of 2113442431 is about 1283.3057518257.

Adding to 2113442431 its reverse (1342443112), we get a palindrome (3455885543).

The spelling of 2113442431 in words is "two billion, one hundred thirteen million, four hundred forty-two thousand, four hundred thirty-one".