103297021 has 2 divisors, whose sum is σ = 103297022. Its totient is φ = 103297020.

The previous prime is 103297013. The next prime is 103297039. The reversal of 103297021 is 120792301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87216921 + 16080100 = 9339^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 103297021 - 2³ = 103297013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103297001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51648510 + 51648511.

It is an arithmetic number, because the mean of its divisors is an integer number (51648511).

Almost surely, 2^103297021 is an apocalyptic number.

It is an amenable number.

103297021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103297021 is an equidigital number, since it uses as much as digits as its factorization.

103297021 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 25.

The square root of 103297021 is about 10163.5142052343. The cubic root of 103297021 is about 469.2049649444.

The spelling of 103297021 in words is "one hundred three million, two hundred ninety-seven thousand, twenty-one".