2138111041 has 4 divisors (see below), whose sum is σ = 2332484784. Its totient is φ = 1943737300.

The previous prime is 2138110993. The next prime is 2138111047. The reversal of 2138111041 is 1401118312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2138111041 - 2⁹ = 2138110529 is a prime.

It is a super-2 number, since 2×2138111041² = 9143037647292207362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138111047) 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, 97186855 + ... + 97186876.

It is an arithmetic number, because the mean of its divisors is an integer number (583121196).

Almost surely, 2^2138111041 is an apocalyptic number.

It is an amenable number.

2138111041 is a deficient number, since it is larger than the sum of its proper divisors (194373743).

2138111041 is a wasteful number, since it uses less digits than its factorization.

2138111041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194373742.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 2138111041 is about 46239.7128126895. The cubic root of 2138111041 is about 1288.2794683827.

Adding to 2138111041 its reverse (1401118312), we get a palindrome (3539229353).

The spelling of 2138111041 in words is "two billion, one hundred thirty-eight million, one hundred eleven thousand, forty-one".