2113321210423 has 4 divisors (see below), whose sum is σ = 2186194355640. Its totient is φ = 2040448065208.

The previous prime is 2113321210421. The next prime is 2113321210433. The reversal of 2113321210423 is 3240121233112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2113321210423 - 2¹ = 2113321210421 is a prime.

It is a super-2 number, since 2×2113321210423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113321210421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36436572565 + ... + 36436572622.

It is an arithmetic number, because the mean of its divisors is an integer number (546548588910).

Almost surely, 2^{2113321210423} is an apocalyptic number.

2113321210423 is a deficient number, since it is larger than the sum of its proper divisors (72873145217).

2113321210423 is an equidigital number, since it uses as much as digits as its factorization.

2113321210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72873145216.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2113321210423 its reverse (3240121233112), we get a palindrome (5353442443535).

The spelling of 2113321210423 in words is "two trillion, one hundred thirteen billion, three hundred twenty-one million, two hundred ten thousand, four hundred twenty-three".