101242313 has 4 divisors (see below), whose sum is σ = 102629268. Its totient is φ = 99855360.

The previous prime is 101242201. The next prime is 101242319. The reversal of 101242313 is 313242101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28430224 + 72812089 = 5332^2 + 8533^2 .

It is a cyclic number.

It is not a de Polignac number, because 101242313 - 2²⁴ = 84465097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101242291 and 101242300.

It is not an unprimeable number, because it can be changed into a prime (101242319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693368 + ... + 693513.

It is an arithmetic number, because the mean of its divisors is an integer number (25657317).

Almost surely, 2^101242313 is an apocalyptic number.

It is an amenable number.

101242313 is a deficient number, since it is larger than the sum of its proper divisors (1386955).

101242313 is an equidigital number, since it uses as much as digits as its factorization.

101242313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386954.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 101242313 is about 10061.9239213979. The cubic root of 101242313 is about 466.0730803865.

Adding to 101242313 its reverse (313242101), we get a palindrome (414484414).

The spelling of 101242313 in words is "one hundred one million, two hundred forty-two thousand, three hundred thirteen".