1011156221347 has 2 divisors, whose sum is σ = 1011156221348. Its totient is φ = 1011156221346.

The previous prime is 1011156221167. The next prime is 1011156221353. The reversal of 1011156221347 is 7431226511101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011156221347 - 2³⁵ = 976796482979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011156221357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505578110673 + 505578110674.

It is an arithmetic number, because the mean of its divisors is an integer number (505578110674).

Almost surely, 2^{1011156221347} is an apocalyptic number.

1011156221347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011156221347 is an equidigital number, since it uses as much as digits as its factorization.

1011156221347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 1011156221347 in words is "one trillion, eleven billion, one hundred fifty-six million, two hundred twenty-one thousand, three hundred forty-seven".