2105242114831 has 2 divisors, whose sum is σ = 2105242114832. Its totient is φ = 2105242114830.

The previous prime is 2105242114777. The next prime is 2105242114879. The reversal of 2105242114831 is 1384112425012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105242114831 - 2²³ = 2105233726223 is a prime.

It is a super-2 number, since 2×2105242114831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105242114631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052621057415 + 1052621057416.

It is an arithmetic number, because the mean of its divisors is an integer number (1052621057416).

Almost surely, 2^{2105242114831} is an apocalyptic number.

2105242114831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105242114831 is an equidigital number, since it uses as much as digits as its factorization.

2105242114831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 34.

Adding to 2105242114831 its reverse (1384112425012), we get a palindrome (3489354539843).

The spelling of 2105242114831 in words is "two trillion, one hundred five billion, two hundred forty-two million, one hundred fourteen thousand, eight hundred thirty-one".