1011155059 has 2 divisors, whose sum is σ = 1011155060. Its totient is φ = 1011155058.

The previous prime is 1011155011. The next prime is 1011155111. The reversal of 1011155059 is 9505511101.

It is a weak prime.

It is an emirp because it is prime and its reverse (9505511101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011155059 - 2¹³ = 1011146867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011155009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505577529 + 505577530.

It is an arithmetic number, because the mean of its divisors is an integer number (505577530).

Almost surely, 2^1011155059 is an apocalyptic number.

1011155059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011155059 is an equidigital number, since it uses as much as digits as its factorization.

1011155059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 28.

The square root of 1011155059 is about 31798.6644216388. The cubic root of 1011155059 is about 1003.7046119031.

The spelling of 1011155059 in words is "one billion, eleven million, one hundred fifty-five thousand, fifty-nine".