121001110973 has 2 divisors, whose sum is σ = 121001110974. Its totient is φ = 121001110972.

The previous prime is 121001110949. The next prime is 121001111029. The reversal of 121001110973 is 379011100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78948636484 + 42052474489 = 280978^2 + 205067^2 .

It is an emirp because it is prime and its reverse (379011100121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121001110973 is a prime.

It is a super-2 number, since 2×121001110973² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121001110943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500555486 + 60500555487.

It is an arithmetic number, because the mean of its divisors is an integer number (60500555487).

Almost surely, 2^121001110973 is an apocalyptic number.

It is an amenable number.

121001110973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001110973 is an equidigital number, since it uses as much as digits as its factorization.

121001110973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 26.

The spelling of 121001110973 in words is "one hundred twenty-one billion, one million, one hundred ten thousand, nine hundred seventy-three".