103031057 has 2 divisors, whose sum is σ = 103031058. Its totient is φ = 103031056.

The previous prime is 103031041. The next prime is 103031077. The reversal of 103031057 is 750130301.

It is a happy number.

It is an a-pointer prime, because the next prime (103031077) can be obtained adding 103031057 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102900736 + 130321 = 10144^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 103031057 - 2⁴ = 103031041 is a prime.

It is not a weakly prime, because it can be changed into another prime (103031017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51515528 + 51515529.

It is an arithmetic number, because the mean of its divisors is an integer number (51515529).

Almost surely, 2^103031057 is an apocalyptic number.

It is an amenable number.

103031057 is a deficient number, since it is larger than the sum of its proper divisors (1).

103031057 is an equidigital number, since it uses as much as digits as its factorization.

103031057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 103031057 is about 10150.4215183410. The cubic root of 103031057 is about 468.8019236822.

Adding to 103031057 its reverse (750130301), we get a palindrome (853161358).

The spelling of 103031057 in words is "one hundred three million, thirty-one thousand, fifty-seven".