242003431 has 2 divisors, whose sum is σ = 242003432. Its totient is φ = 242003430.

The previous prime is 242003417. The next prime is 242003467. The reversal of 242003431 is 134300242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242003431 - 2²⁷ = 107785703 is a prime.

It is a super-2 number, since 2×242003431² = 117131321231543522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242003399 and 242003408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242003831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121001715 + 121001716.

It is an arithmetic number, because the mean of its divisors is an integer number (121001716).

Almost surely, 2^242003431 is an apocalyptic number.

242003431 is a deficient number, since it is larger than the sum of its proper divisors (1).

242003431 is an equidigital number, since it uses as much as digits as its factorization.

242003431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 242003431 is about 15556.4594622298. The cubic root of 242003431 is about 623.1709134496.

Adding to 242003431 its reverse (134300242), we get a palindrome (376303673).

The spelling of 242003431 in words is "two hundred forty-two million, three thousand, four hundred thirty-one".