2100030997 has 2 divisors, whose sum is σ = 2100030998. Its totient is φ = 2100030996.

The previous prime is 2100030973. The next prime is 2100031051. The reversal of 2100030997 is 7990300012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1661296081 + 438734916 = 40759^2 + 20946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100030997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100030967) 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, 1050015498 + 1050015499.

It is an arithmetic number, because the mean of its divisors is an integer number (1050015499).

Almost surely, 2^2100030997 is an apocalyptic number.

It is an amenable number.

2100030997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100030997 is an equidigital number, since it uses as much as digits as its factorization.

2100030997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2100030997 is about 45826.0951533076. The cubic root of 2100030997 is about 1280.5854656093.

The spelling of 2100030997 in words is "two billion, one hundred million, thirty thousand, nine hundred ninety-seven".