242130313 has 4 divisors (see below), whose sum is σ = 243978768. Its totient is φ = 240281860.

The previous prime is 242130293. The next prime is 242130347. The reversal of 242130313 is 313031242.

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.

It is a cyclic number.

It is not a de Polignac number, because 242130313 - 2²¹ = 240033161 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (242130013) 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, 924031 + ... + 924292.

It is an arithmetic number, because the mean of its divisors is an integer number (60994692).

Almost surely, 2^242130313 is an apocalyptic number.

It is an amenable number.

242130313 is a deficient number, since it is larger than the sum of its proper divisors (1848455).

242130313 is a wasteful number, since it uses less digits than its factorization.

242130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848454.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 242130313 is about 15560.5370408608. The cubic root of 242130313 is about 623.2798035825.

Adding to 242130313 its reverse (313031242), we get a palindrome (555161555).

The spelling of 242130313 in words is "two hundred forty-two million, one hundred thirty thousand, three hundred thirteen".