242313631 has 16 divisors (see below), whose sum is σ = 308655360. Its totient is φ = 185189760.

The previous prime is 242313613. The next prime is 242313653. The reversal of 242313631 is 136313242.

It is not a de Polignac number, because 242313631 - 2⁷ = 242313503 is a prime.

It is a super-2 number, since 2×242313631² = 117431791536808322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242313596 and 242313605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242343631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51325 + ... + 55846.

It is an arithmetic number, because the mean of its divisors is an integer number (19290960).

Almost surely, 2^242313631 is an apocalyptic number.

242313631 is a deficient number, since it is larger than the sum of its proper divisors (66341729).

242313631 is a wasteful number, since it uses less digits than its factorization.

242313631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107214.

The product of its digits is 2592, while the sum is 25.

The square root of 242313631 is about 15566.4264042843. The cubic root of 242313631 is about 623.4370599273.

Adding to 242313631 its reverse (136313242), we get a palindrome (378626873).

The spelling of 242313631 in words is "two hundred forty-two million, three hundred thirteen thousand, six hundred thirty-one".