101002120331977 has 2 divisors, whose sum is σ = 101002120331978. Its totient is φ = 101002120331976.

The previous prime is 101002120331953. The next prime is 101002120332011. The reversal of 101002120331977 is 779133021200101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51440295051721 + 49561825280256 = 7172189^2 + 7040016^2 .

It is a cyclic number.

It is not a de Polignac number, because 101002120331977 - 2⁴³ = 92206027309769 is a prime.

It is not a weakly prime, because it can be changed into another prime (101002120331927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50501060165988 + 50501060165989.

It is an arithmetic number, because the mean of its divisors is an integer number (50501060165989).

Almost surely, 2^{101002120331977} is an apocalyptic number.

It is an amenable number.

101002120331977 is a deficient number, since it is larger than the sum of its proper divisors (1).

101002120331977 is an equidigital number, since it uses as much as digits as its factorization.

101002120331977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The spelling of 101002120331977 in words is "one hundred one trillion, two billion, one hundred twenty million, three hundred thirty-one thousand, nine hundred seventy-seven".