101330257 has 4 divisors (see below), whose sum is σ = 115806016. Its totient is φ = 86854500.

The previous prime is 101330237. The next prime is 101330279. The reversal of 101330257 is 752033101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752033101 = 433 ⋅1736797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101330257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101330237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237869 + ... + 7237882.

It is an arithmetic number, because the mean of its divisors is an integer number (28951504).

Almost surely, 2^101330257 is an apocalyptic number.

It is an amenable number.

101330257 is a deficient number, since it is larger than the sum of its proper divisors (14475759).

101330257 is an equidigital number, since it uses as much as digits as its factorization.

101330257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475758.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 101330257 is about 10066.2931111706. The cubic root of 101330257 is about 466.2079925833.

Adding to 101330257 its reverse (752033101), we get a palindrome (853363358).

The spelling of 101330257 in words is "one hundred one million, three hundred thirty thousand, two hundred fifty-seven".