103513331 has 2 divisors, whose sum is σ = 103513332. Its totient is φ = 103513330.

The previous prime is 103513327. The next prime is 103513379. The reversal of 103513331 is 133315301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103513331 - 2² = 103513327 is a prime.

It is a super-2 number, since 2×103513331² = 21430019389431122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103513301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51756665 + 51756666.

It is an arithmetic number, because the mean of its divisors is an integer number (51756666).

Almost surely, 2^103513331 is an apocalyptic number.

103513331 is a deficient number, since it is larger than the sum of its proper divisors (1).

103513331 is an equidigital number, since it uses as much as digits as its factorization.

103513331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 103513331 is about 10174.1501364979. The cubic root of 103513331 is about 469.5322508064.

Adding to 103513331 its reverse (133315301), we get a palindrome (236828632).

The spelling of 103513331 in words is "one hundred three million, five hundred thirteen thousand, three hundred thirty-one".