1101111010973 has 2 divisors, whose sum is σ = 1101111010974. Its totient is φ = 1101111010972.

The previous prime is 1101111010949. The next prime is 1101111010999. The reversal of 1101111010973 is 3790101111011.

It is an a-pointer prime, because the next prime (1101111010999) can be obtained adding 1101111010973 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658243387684 + 442867623289 = 811322^2 + 665483^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101111010973 - 2²⁶ = 1101043902109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101111010673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555505486 + 550555505487.

It is an arithmetic number, because the mean of its divisors is an integer number (550555505487).

Almost surely, 2^{1101111010973} is an apocalyptic number.

It is an amenable number.

1101111010973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111010973 is an equidigital number, since it uses as much as digits as its factorization.

1101111010973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 26.

Adding to 1101111010973 its reverse (3790101111011), we get a palindrome (4891212121984).

The spelling of 1101111010973 in words is "one trillion, one hundred one billion, one hundred eleven million, ten thousand, nine hundred seventy-three".