2101140323231 has 4 divisors (see below), whose sum is σ = 2192494250352. Its totient is φ = 2009786396112.

The previous prime is 2101140323203. The next prime is 2101140323263. The reversal of 2101140323231 is 1323230411012.

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 2101140323231 - 2¹⁰ = 2101140322207 is a prime.

It is a super-2 number, since 2×2101140323231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 91353927097 = 2101140323231 / (2 + 1 + 0 + 1 + 1 + 4 + 0 + 3 + 2 + 3 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101140323197 and 2101140323206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101140323201) 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, 45676963526 + ... + 45676963571.

It is an arithmetic number, because the mean of its divisors is an integer number (548123562588).

Almost surely, 2^{2101140323231} is an apocalyptic number.

2101140323231 is a deficient number, since it is larger than the sum of its proper divisors (91353927121).

2101140323231 is an equidigital number, since it uses as much as digits as its factorization.

2101140323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91353927120.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2101140323231 its reverse (1323230411012), we get a palindrome (3424370734243).

The spelling of 2101140323231 in words is "two trillion, one hundred one billion, one hundred forty million, three hundred twenty-three thousand, two hundred thirty-one".