2102144011831 has 2 divisors, whose sum is σ = 2102144011832. Its totient is φ = 2102144011830.

The previous prime is 2102144011829. The next prime is 2102144011873. The reversal of 2102144011831 is 1381104412012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102144011831 - 2¹ = 2102144011829 is a prime.

It is a super-2 number, since 2×2102144011831² (a number of 25 digits) contains 22 as substring.

Together with 2102144011829, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2102144011831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102144011801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051072005915 + 1051072005916.

It is an arithmetic number, because the mean of its divisors is an integer number (1051072005916).

Almost surely, 2^{2102144011831} is an apocalyptic number.

2102144011831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102144011831 is an equidigital number, since it uses as much as digits as its factorization.

2102144011831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 2102144011831 its reverse (1381104412012), we get a palindrome (3483248423843).

The spelling of 2102144011831 in words is "two trillion, one hundred two billion, one hundred forty-four million, eleven thousand, eight hundred thirty-one".