242231313 has 16 divisors (see below), whose sum is σ = 325811520. Its totient is φ = 160075584.

The previous prime is 242231309. The next prime is 242231347. The reversal of 242231313 is 313132242.

It is not a de Polignac number, because 242231313 - 2² = 242231309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242231313.

It is not an unprimeable number, because it can be changed into a prime (242231393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291783 + ... + 292611.

It is an arithmetic number, because the mean of its divisors is an integer number (20363220).

Almost surely, 2^242231313 is an apocalyptic number.

It is an amenable number.

242231313 is a deficient number, since it is larger than the sum of its proper divisors (83580207).

242231313 is a wasteful number, since it uses less digits than its factorization.

242231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its digits is 864, while the sum is 21.

The square root of 242231313 is about 15563.7820917668. The cubic root of 242231313 is about 623.3664545935.

Adding to 242231313 its reverse (313132242), we get a palindrome (555363555).

The spelling of 242231313 in words is "two hundred forty-two million, two hundred thirty-one thousand, three hundred thirteen".