242701031 has 2 divisors, whose sum is σ = 242701032. Its totient is φ = 242701030.

The previous prime is 242701007. The next prime is 242701033. The reversal of 242701031 is 130107242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242701031 - 2⁶ = 242700967 is a prime.

It is a super-2 number, since 2×242701031² = 117807580896925922, which contains 22 as substring.

Together with 242701033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 242700994 and 242701012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242701033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121350515 + 121350516.

It is an arithmetic number, because the mean of its divisors is an integer number (121350516).

Almost surely, 2^242701031 is an apocalyptic number.

242701031 is a deficient number, since it is larger than the sum of its proper divisors (1).

242701031 is an equidigital number, since it uses as much as digits as its factorization.

242701031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 242701031 is about 15578.8648816273. The cubic root of 242701031 is about 623.7691239553.

Adding to 242701031 its reverse (130107242), we get a palindrome (372808273).

The spelling of 242701031 in words is "two hundred forty-two million, seven hundred one thousand, thirty-one".