101990325049 has 2 divisors, whose sum is σ = 101990325050. Its totient is φ = 101990325048.

The previous prime is 101990325029. The next prime is 101990325083. The reversal of 101990325049 is 940523099101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60876679824 + 41113645225 = 246732^2 + 202765^2 .

It is a cyclic number.

It is not a de Polignac number, because 101990325049 - 2²⁷ = 101856107321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101990324996 and 101990325014.

It is not a weakly prime, because it can be changed into another prime (101990325029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50995162524 + 50995162525.

It is an arithmetic number, because the mean of its divisors is an integer number (50995162525).

Almost surely, 2^101990325049 is an apocalyptic number.

It is an amenable number.

101990325049 is a deficient number, since it is larger than the sum of its proper divisors (1).

101990325049 is an equidigital number, since it uses as much as digits as its factorization.

101990325049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 101990325049 in words is "one hundred one billion, nine hundred ninety million, three hundred twenty-five thousand, forty-nine".