103431061 has 2 divisors, whose sum is σ = 103431062. Its totient is φ = 103431060.

The previous prime is 103431059. The next prime is 103431073. The reversal of 103431061 is 160134301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103408561 + 22500 = 10169^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 103431061 - 2¹ = 103431059 is a prime.

Together with 103431059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103431091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51715530 + 51715531.

It is an arithmetic number, because the mean of its divisors is an integer number (51715531).

Almost surely, 2^103431061 is an apocalyptic number.

It is an amenable number.

103431061 is a deficient number, since it is larger than the sum of its proper divisors (1).

103431061 is an equidigital number, since it uses as much as digits as its factorization.

103431061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 103431061 is about 10170.1062432995. The cubic root of 103431061 is about 469.4078267151.

Adding to 103431061 its reverse (160134301), we get a palindrome (263565362).

The spelling of 103431061 in words is "one hundred three million, four hundred thirty-one thousand, sixty-one".