242120311325 has 6 divisors (see below), whose sum is σ = 300229186074. Its totient is φ = 193696249040.

The previous prime is 242120311309. The next prime is 242120311373. The reversal of 242120311325 is 523113021242.

It can be written as a sum of positive squares in 3 ways, for example, as 34529815684 + 207590495641 = 185822^2 + 455621^2 .

It is not a de Polignac number, because 242120311325 - 2⁴ = 242120311309 is a prime.

It is a super-2 number, since 2×242120311325² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242120311294 and 242120311303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4842406202 + ... + 4842406251.

It is an arithmetic number, because the mean of its divisors is an integer number (50038197679).

Almost surely, 2^242120311325 is an apocalyptic number.

242120311325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242120311325 is a deficient number, since it is larger than the sum of its proper divisors (58108874749).

242120311325 is an equidigital number, since it uses as much as digits as its factorization.

242120311325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684812463 (or 9684812458 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 242120311325 its reverse (523113021242), we get a palindrome (765233332567).

The spelling of 242120311325 in words is "two hundred forty-two billion, one hundred twenty million, three hundred eleven thousand, three hundred twenty-five".