103132021 has 2 divisors, whose sum is σ = 103132022. Its totient is φ = 103132020.

The previous prime is 103131997. The next prime is 103132027. The reversal of 103132021 is 120231301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72760900 + 30371121 = 8530^2 + 5511^2 .

It is an emirp because it is prime and its reverse (120231301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103132021 - 2¹⁵ = 103099253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103131992 and 103132010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103132027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51566010 + 51566011.

It is an arithmetic number, because the mean of its divisors is an integer number (51566011).

Almost surely, 2^103132021 is an apocalyptic number.

It is an amenable number.

103132021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103132021 is an equidigital number, since it uses as much as digits as its factorization.

103132021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103132021 is about 10155.3936900546. The cubic root of 103132021 is about 468.9550058899.

Adding to 103132021 its reverse (120231301), we get a palindrome (223363322).

The spelling of 103132021 in words is "one hundred three million, one hundred thirty-two thousand, twenty-one".