103201531 has 2 divisors, whose sum is σ = 103201532. Its totient is φ = 103201530.

The previous prime is 103201513. The next prime is 103201583. The reversal of 103201531 is 135102301.

Together with previous prime (103201513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103201531 is a prime.

It is a super-2 number, since 2×103201531² = 21301112001487922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103201031) 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, 51600765 + 51600766.

It is an arithmetic number, because the mean of its divisors is an integer number (51600766).

Almost surely, 2^103201531 is an apocalyptic number.

103201531 is a deficient number, since it is larger than the sum of its proper divisors (1).

103201531 is an equidigital number, since it uses as much as digits as its factorization.

103201531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 103201531 is about 10158.8154329134. The cubic root of 103201531 is about 469.0603392982.

Adding to 103201531 its reverse (135102301), we get a palindrome (238303832).

The spelling of 103201531 in words is "one hundred three million, two hundred one thousand, five hundred thirty-one".