2141111447 has 2 divisors, whose sum is σ = 2141111448. Its totient is φ = 2141111446.

The previous prime is 2141111431. The next prime is 2141111459. The reversal of 2141111447 is 7441111412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2141111447 - 2⁴ = 2141111431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2141111477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070555723 + 1070555724.

It is an arithmetic number, because the mean of its divisors is an integer number (1070555724).

Almost surely, 2^2141111447 is an apocalyptic number.

2141111447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141111447 is an equidigital number, since it uses as much as digits as its factorization.

2141111447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

The square root of 2141111447 is about 46272.1454765175. The cubic root of 2141111447 is about 1288.8817998638.

Adding to 2141111447 its reverse (7441111412), we get a palindrome (9582222859).

The spelling of 2141111447 in words is "two billion, one hundred forty-one million, one hundred eleven thousand, four hundred forty-seven".