1101012121973 has 2 divisors, whose sum is σ = 1101012121974. Its totient is φ = 1101012121972.

The previous prime is 1101012121927. The next prime is 1101012122039. The reversal of 1101012121973 is 3791212101011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790493475409 + 310518646564 = 889097^2 + 557242^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101012121973 - 2²⁸ = 1100743686517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101012121903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550506060986 + 550506060987.

It is an arithmetic number, because the mean of its divisors is an integer number (550506060987).

Almost surely, 2^{1101012121973} is an apocalyptic number.

It is an amenable number.

1101012121973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101012121973 is an equidigital number, since it uses as much as digits as its factorization.

1101012121973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 29.

Adding to 1101012121973 its reverse (3791212101011), we get a palindrome (4892224222984).

The spelling of 1101012121973 in words is "one trillion, one hundred one billion, twelve million, one hundred twenty-one thousand, nine hundred seventy-three".