2105971042 has 8 divisors (see below), whose sum is σ = 3610236096. Its totient is φ = 902559012.

The previous prime is 2105971009. The next prime is 2105971093. The reversal of 2105971042 is 2401795012.

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

It is a super-2 number, since 2×2105971042² = 8870228059485131528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2105970995 and 2105971013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75213238 + ... + 75213265.

It is an arithmetic number, because the mean of its divisors is an integer number (451279512).

Almost surely, 2^2105971042 is an apocalyptic number.

2105971042 is a deficient number, since it is larger than the sum of its proper divisors (1504265054).

2105971042 is a wasteful number, since it uses less digits than its factorization.

2105971042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150426512.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2105971042 is about 45890.8601139704. The cubic root of 2105971042 is about 1281.7917294753.

The spelling of 2105971042 in words is "two billion, one hundred five million, nine hundred seventy-one thousand, forty-two".