2113311102431 has 4 divisors (see below), whose sum is σ = 2113340604672. Its totient is φ = 2113281600192.

The previous prime is 2113311102421. The next prime is 2113311102433. The reversal of 2113311102431 is 1342011133112.

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 2113311102431 - 2⁶ = 2113311102367 is a prime.

It is a super-2 number, since 2×2113311102431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113311102397 and 2113311102406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113311102433) 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, 14643410 + ... + 14787023.

It is an arithmetic number, because the mean of its divisors is an integer number (528335151168).

Almost surely, 2^{2113311102431} is an apocalyptic number.

2113311102431 is a deficient number, since it is larger than the sum of its proper divisors (29502241).

2113311102431 is an equidigital number, since it uses as much as digits as its factorization.

2113311102431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29502240.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 2113311102431 its reverse (1342011133112), we get a palindrome (3455322235543).

The spelling of 2113311102431 in words is "two trillion, one hundred thirteen billion, three hundred eleven million, one hundred two thousand, four hundred thirty-one".