1111352129 has 2 divisors, whose sum is σ = 1111352130. Its totient is φ = 1111352128.

The previous prime is 1111352117. The next prime is 1111352131. The reversal of 1111352129 is 9212531111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638724529 + 472627600 = 25273^2 + 21740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111352129 - 2⁴ = 1111352113 is a prime.

Together with 1111352131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111352098 and 1111352107.

It is not a weakly prime, because it can be changed into another prime (1111352159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555676064 + 555676065.

It is an arithmetic number, because the mean of its divisors is an integer number (555676065).

Almost surely, 2^1111352129 is an apocalyptic number.

It is an amenable number.

1111352129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111352129 is an equidigital number, since it uses as much as digits as its factorization.

1111352129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 26.

The square root of 1111352129 is about 33336.9484056355. The cubic root of 1111352129 is about 1035.8190530989.

The spelling of 1111352129 in words is "one billion, one hundred eleven million, three hundred fifty-two thousand, one hundred twenty-nine".