2105125561263 has 8 divisors (see below), whose sum is σ = 2828260296576. Its totient is φ = 1392703933400.

The previous prime is 2105125561223. The next prime is 2105125561327. The reversal of 2105125561263 is 3621655215012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105125561263 - 2¹⁸ = 2105125299119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105125561223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2678276403 + ... + 2678277188.

It is an arithmetic number, because the mean of its divisors is an integer number (353532537072).

Almost surely, 2^{2105125561263} is an apocalyptic number.

2105125561263 is a deficient number, since it is larger than the sum of its proper divisors (723134735313).

2105125561263 is a wasteful number, since it uses less digits than its factorization.

2105125561263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356553725.

The product of its (nonzero) digits is 108000, while the sum is 39.

It can be divided in two parts, 210512 and 5561263, that added together give a palindrome (5771775).

The spelling of 2105125561263 in words is "two trillion, one hundred five billion, one hundred twenty-five million, five hundred sixty-one thousand, two hundred sixty-three".