11111001029 has 2 divisors, whose sum is σ = 11111001030. Its totient is φ = 11111001028.

The previous prime is 11111000993. The next prime is 11111001053. The reversal of 11111001029 is 92010011111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7674110404 + 3436890625 = 87602^2 + 58625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111001029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111000998 and 11111001016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111001329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500514 + 5555500515.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500515).

Almost surely, 2^11111001029 is an apocalyptic number.

It is an amenable number.

11111001029 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111001029 is an equidigital number, since it uses as much as digits as its factorization.

11111001029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 11111001029 in words is "eleven billion, one hundred eleven million, one thousand, twenty-nine".