1101111132973 has 2 divisors, whose sum is σ = 1101111132974. Its totient is φ = 1101111132972.

The previous prime is 1101111132959. The next prime is 1101111133007. The reversal of 1101111132973 is 3792311111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879249408489 + 221861724484 = 937683^2 + 471022^2 .

It is an emirp because it is prime and its reverse (3792311111011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101111132973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101111132073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555566486 + 550555566487.

It is an arithmetic number, because the mean of its divisors is an integer number (550555566487).

Almost surely, 2^{1101111132973} is an apocalyptic number.

It is an amenable number.

1101111132973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111132973 is an equidigital number, since it uses as much as digits as its factorization.

1101111132973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

Adding to 1101111132973 its reverse (3792311111011), we get a palindrome (4893422243984).

The spelling of 1101111132973 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred thirty-two thousand, nine hundred seventy-three".