2111655043 has 2 divisors, whose sum is σ = 2111655044. Its totient is φ = 2111655042.

The previous prime is 2111655031. The next prime is 2111655053. The reversal of 2111655043 is 3405561112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111655043 - 2⁵ = 2111655011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111655053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055827521 + 1055827522.

It is an arithmetic number, because the mean of its divisors is an integer number (1055827522).

Almost surely, 2^2111655043 is an apocalyptic number.

2111655043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111655043 is an equidigital number, since it uses as much as digits as its factorization.

2111655043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2111655043 is about 45952.7479374194. The cubic root of 2111655043 is about 1282.9438758326.

The spelling of 2111655043 in words is "two billion, one hundred eleven million, six hundred fifty-five thousand, forty-three".