101020121001973 has 2 divisors, whose sum is σ = 101020121001974. Its totient is φ = 101020121001972.

The previous prime is 101020121001923. The next prime is 101020121002039. The reversal of 101020121001973 is 379100121020101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63767140197489 + 37252980804484 = 7985433^2 + 6103522^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020121001973 - 2²¹ = 101020118904821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020121001923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510060500986 + 50510060500987.

It is an arithmetic number, because the mean of its divisors is an integer number (50510060500987).

Almost surely, 2^{101020121001973} is an apocalyptic number.

It is an amenable number.

101020121001973 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020121001973 is an equidigital number, since it uses as much as digits as its factorization.

101020121001973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 28.

The spelling of 101020121001973 in words is "one hundred one trillion, twenty billion, one hundred twenty-one million, one thousand, nine hundred seventy-three".