103421113 has 2 divisors, whose sum is σ = 103421114. Its totient is φ = 103421112.

The previous prime is 103421093. The next prime is 103421117. The reversal of 103421113 is 311124301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 48483369 = 7412^2 + 6963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103421113 is a prime.

It is a super-2 number, since 2×103421113² = 21391853228317538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103421117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51710556 + 51710557.

It is an arithmetic number, because the mean of its divisors is an integer number (51710557).

Almost surely, 2^103421113 is an apocalyptic number.

It is an amenable number.

103421113 is a deficient number, since it is larger than the sum of its proper divisors (1).

103421113 is an equidigital number, since it uses as much as digits as its factorization.

103421113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 103421113 is about 10169.6171511026. The cubic root of 103421113 is about 469.3927770168.

Adding to 103421113 its reverse (311124301), we get a palindrome (414545414).

The spelling of 103421113 in words is "one hundred three million, four hundred twenty-one thousand, one hundred thirteen".