242151310411523 has 2 divisors, whose sum is σ = 242151310411524. Its totient is φ = 242151310411522.

The previous prime is 242151310411511. The next prime is 242151310411541. The reversal of 242151310411523 is 325114013151242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242151310411523 - 2⁸ = 242151310411267 is a prime.

It is a super-2 number, since 2×242151310411523² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242151310411723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121075655205761 + 121075655205762.

It is an arithmetic number, because the mean of its divisors is an integer number (121075655205762).

Almost surely, 2^{242151310411523} is an apocalyptic number.

242151310411523 is a deficient number, since it is larger than the sum of its proper divisors (1).

242151310411523 is an equidigital number, since it uses as much as digits as its factorization.

242151310411523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 242151310411523 its reverse (325114013151242), we get a palindrome (567265323562765).

The spelling of 242151310411523 in words is "two hundred forty-two trillion, one hundred fifty-one billion, three hundred ten million, four hundred eleven thousand, five hundred twenty-three".