2111454143 has 2 divisors, whose sum is σ = 2111454144. Its totient is φ = 2111454142.

The previous prime is 2111454139. The next prime is 2111454157. The reversal of 2111454143 is 3414541112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111454143 - 2² = 2111454139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111454643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055727071 + 1055727072.

It is an arithmetic number, because the mean of its divisors is an integer number (1055727072).

Almost surely, 2^2111454143 is an apocalyptic number.

2111454143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111454143 is an equidigital number, since it uses as much as digits as its factorization.

2111454143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

The square root of 2111454143 is about 45950.5619443332. The cubic root of 2111454143 is about 1282.9031886948.

Adding to 2111454143 its reverse (3414541112), we get a palindrome (5525995255).

It can be divided in two parts, 21114 and 54143, that added together give a palindrome (75257).

The spelling of 2111454143 in words is "two billion, one hundred eleven million, four hundred fifty-four thousand, one hundred forty-three".