105441132721 has 2 divisors, whose sum is σ = 105441132722. Its totient is φ = 105441132720.

The previous prime is 105441132661. The next prime is 105441132761. The reversal of 105441132721 is 127231144501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101149441600 + 4291691121 = 318040^2 + 65511^2 .

It is a cyclic number.

It is not a de Polignac number, because 105441132721 - 2²⁹ = 104904261809 is a prime.

It is a super-2 number, since 2×105441132721² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105441132761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52720566360 + 52720566361.

It is an arithmetic number, because the mean of its divisors is an integer number (52720566361).

Almost surely, 2^105441132721 is an apocalyptic number.

It is an amenable number.

105441132721 is a deficient number, since it is larger than the sum of its proper divisors (1).

105441132721 is an equidigital number, since it uses as much as digits as its factorization.

105441132721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 105441132721 in words is "one hundred five billion, four hundred forty-one million, one hundred thirty-two thousand, seven hundred twenty-one".