242351403031 has 2 divisors, whose sum is σ = 242351403032. Its totient is φ = 242351403030.

The previous prime is 242351403017. The next prime is 242351403037. The reversal of 242351403031 is 130304153242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242351403031 - 2⁷ = 242351402903 is a prime.

It is a super-2 number, since 2×242351403031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242351403037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121175701515 + 121175701516.

It is an arithmetic number, because the mean of its divisors is an integer number (121175701516).

Almost surely, 2^242351403031 is an apocalyptic number.

242351403031 is a deficient number, since it is larger than the sum of its proper divisors (1).

242351403031 is an equidigital number, since it uses as much as digits as its factorization.

242351403031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 242351403031 its reverse (130304153242), we get a palindrome (372655556273).

The spelling of 242351403031 in words is "two hundred forty-two billion, three hundred fifty-one million, four hundred three thousand, thirty-one".