101020120997 has 2 divisors, whose sum is σ = 101020120998. Its totient is φ = 101020120996.

The previous prime is 101020120991. The next prime is 101020121029. The reversal of 101020120997 is 799021020101.

It is an a-pointer prime, because the next prime (101020121029) can be obtained adding 101020120997 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98893896676 + 2126224321 = 314474^2 + 46111^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020120997 - 2⁸ = 101020120741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020120991) 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, 50510060498 + 50510060499.

It is an arithmetic number, because the mean of its divisors is an integer number (50510060499).

Almost surely, 2^101020120997 is an apocalyptic number.

It is an amenable number.

101020120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020120997 is an equidigital number, since it uses as much as digits as its factorization.

101020120997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 101020120997 in words is "one hundred one billion, twenty million, one hundred twenty thousand, nine hundred ninety-seven".