2111247043 has 2 divisors, whose sum is σ = 2111247044. Its totient is φ = 2111247042.

The previous prime is 2111247037. The next prime is 2111247107. The reversal of 2111247043 is 3407421112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111247043 - 2⁵ = 2111247011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111246999 and 2111247017.

It is not a weakly prime, because it can be changed into another prime (2111247023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055623521 + 1055623522.

It is an arithmetic number, because the mean of its divisors is an integer number (1055623522).

Almost surely, 2^2111247043 is an apocalyptic number.

2111247043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111247043 is an equidigital number, since it uses as much as digits as its factorization.

2111247043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2111247043 is about 45948.3083801787. The cubic root of 2111247043 is about 1282.8612432046.

Adding to 2111247043 its reverse (3407421112), we get a palindrome (5518668155).

The spelling of 2111247043 in words is "two billion, one hundred eleven million, two hundred forty-seven thousand, forty-three".