103000921 has 2 divisors, whose sum is σ = 103000922. Its totient is φ = 103000920.

The previous prime is 103000903. The next prime is 103000939. The reversal of 103000921 is 129000301.

It is a balanced prime because it is at equal distance from previous prime (103000903) and next prime (103000939).

It can be written as a sum of positive squares in only one way, i.e., 55666521 + 47334400 = 7461^2 + 6880^2 .

It is a cyclic number.

It is not a de Polignac number, because 103000921 - 2¹¹ = 102998873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103000895 and 103000904.

It is not a weakly prime, because it can be changed into another prime (103000901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51500460 + 51500461.

It is an arithmetic number, because the mean of its divisors is an integer number (51500461).

Almost surely, 2^103000921 is an apocalyptic number.

It is an amenable number.

103000921 is a deficient number, since it is larger than the sum of its proper divisors (1).

103000921 is an equidigital number, since it uses as much as digits as its factorization.

103000921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 103000921 is about 10148.9369394040. The cubic root of 103000921 is about 468.7562119236.

The spelling of 103000921 in words is "one hundred three million, nine hundred twenty-one", and thus it is an aban number.