242103431 has 4 divisors (see below), whose sum is σ = 242384832. Its totient is φ = 241822032.

The previous prime is 242103427. The next prime is 242103461. The reversal of 242103431 is 134301242.

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

It is a cyclic number.

It is not a de Polignac number, because 242103431 - 2² = 242103427 is a prime.

It is a super-2 number, since 2×242103431² = 117228142603943522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242103461) 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, 139406 + ... + 141131.

It is an arithmetic number, because the mean of its divisors is an integer number (60596208).

Almost surely, 2^242103431 is an apocalyptic number.

242103431 is a deficient number, since it is larger than the sum of its proper divisors (281401).

242103431 is an equidigital number, since it uses as much as digits as its factorization.

242103431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281400.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 242103431 is about 15559.6732292166. The cubic root of 242103431 is about 623.2567366266.

Adding to 242103431 its reverse (134301242), we get a palindrome (376404673).

The spelling of 242103431 in words is "two hundred forty-two million, one hundred three thousand, four hundred thirty-one".