2711128921 has 2 divisors, whose sum is σ = 2711128922. Its totient is φ = 2711128920.

The previous prime is 2711128879. The next prime is 2711128949. The reversal of 2711128921 is 1298211172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2379488400 + 331640521 = 48780^2 + 18211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2711128921 - 2²⁵ = 2677574489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2711128621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1355564460 + 1355564461.

It is an arithmetic number, because the mean of its divisors is an integer number (1355564461).

Almost surely, 2^2711128921 is an apocalyptic number.

It is an amenable number.

2711128921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2711128921 is an equidigital number, since it uses as much as digits as its factorization.

2711128921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 34.

The square root of 2711128921 is about 52068.5021966256. The cubic root of 2711128921 is about 1394.3872080616.

The spelling of 2711128921 in words is "two billion, seven hundred eleven million, one hundred twenty-eight thousand, nine hundred twenty-one".