2105502434131 has 4 divisors (see below), whose sum is σ = 2135157398064. Its totient is φ = 2075847470200.

The previous prime is 2105502434111. The next prime is 2105502434197. The reversal of 2105502434131 is 1314342055012.

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 2105502434131 - 2⁵ = 2105502434099 is a prime.

It is a super-2 number, since 2×2105502434131² (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 = 2105502434093 and 2105502434102.

It is not an unprimeable number, because it can be changed into a prime (2105502434111) 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, 14827481860 + ... + 14827482001.

It is an arithmetic number, because the mean of its divisors is an integer number (533789349516).

Almost surely, 2^{2105502434131} is an apocalyptic number.

2105502434131 is a deficient number, since it is larger than the sum of its proper divisors (29654963933).

2105502434131 is an equidigital number, since it uses as much as digits as its factorization.

2105502434131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29654963932.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2105502434131 its reverse (1314342055012), we get a palindrome (3419844489143).

The spelling of 2105502434131 in words is "two trillion, one hundred five billion, five hundred two million, four hundred thirty-four thousand, one hundred thirty-one".