10123513 has 2 divisors, whose sum is σ = 10123514. Its totient is φ = 10123512.

The previous prime is 10123481. The next prime is 10123537. The reversal of 10123513 is 31532101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8690704 + 1432809 = 2948^2 + 1197^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123513 - 2⁵ = 10123481 is a prime.

It is a super-2 number, since 2×10123513² = 204971030922338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10123543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061756 + 5061757.

It is an arithmetic number, because the mean of its divisors is an integer number (5061757).

Almost surely, 2^10123513 is an apocalyptic number.

It is an amenable number.

10123513 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123513 is an equidigital number, since it uses as much as digits as its factorization.

10123513 is an evil number, because the sum of its binary digits is even.

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

The square root of 10123513 is about 3181.7468472523. The cubic root of 10123513 is about 216.3268442863.

Adding to 10123513 its reverse (31532101), we get a palindrome (41655614).

The spelling of 10123513 in words is "ten million, one hundred twenty-three thousand, five hundred thirteen".