1011001021097 has 2 divisors, whose sum is σ = 1011001021098. Its totient is φ = 1011001021096.

The previous prime is 1011001021067. The next prime is 1011001021109. The reversal of 1011001021097 is 7901201001101.

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., 948342921241 + 62658099856 = 973829^2 + 250316^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011001021097 - 2²⁴ = 1010984243881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011001021067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505500510548 + 505500510549.

It is an arithmetic number, because the mean of its divisors is an integer number (505500510549).

Almost surely, 2^{1011001021097} is an apocalyptic number.

It is an amenable number.

1011001021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011001021097 is an equidigital number, since it uses as much as digits as its factorization.

1011001021097 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 23.

Adding to 1011001021097 its reverse (7901201001101), we get a palindrome (8912202022198).

The spelling of 1011001021097 in words is "one trillion, eleven billion, one million, twenty-one thousand, ninety-seven".