1011121110971 has 2 divisors, whose sum is σ = 1011121110972. Its totient is φ = 1011121110970.

The previous prime is 1011121110949. The next prime is 1011121111067. The reversal of 1011121110971 is 1790111211101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011121110971 - 2⁶ = 1011121110907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011121110971.

It is not a weakly prime, because it can be changed into another prime (1011121110071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505560555485 + 505560555486.

It is an arithmetic number, because the mean of its divisors is an integer number (505560555486).

Almost surely, 2^{1011121110971} is an apocalyptic number.

1011121110971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011121110971 is an equidigital number, since it uses as much as digits as its factorization.

1011121110971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 26.

The spelling of 1011121110971 in words is "one trillion, eleven billion, one hundred twenty-one million, one hundred ten thousand, nine hundred seventy-one".