2141121971 has 2 divisors, whose sum is σ = 2141121972. Its totient is φ = 2141121970.

The previous prime is 2141121947. The next prime is 2141121991. The reversal of 2141121971 is 1791211412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2141121971 - 2¹⁴ = 2141105587 is a prime.

It is not a weakly prime, because it can be changed into another prime (2141121991) 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, 1070560985 + 1070560986.

It is an arithmetic number, because the mean of its divisors is an integer number (1070560986).

Almost surely, 2^2141121971 is an apocalyptic number.

2141121971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141121971 is an equidigital number, since it uses as much as digits as its factorization.

2141121971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 29.

The square root of 2141121971 is about 46272.2591948999. The cubic root of 2141121971 is about 1288.8839115661.

The spelling of 2141121971 in words is "two billion, one hundred forty-one million, one hundred twenty-one thousand, nine hundred seventy-one".