242123051501 has 4 divisors (see below), whose sum is σ = 244619165532. Its totient is φ = 239626937472.

The previous prime is 242123051453. The next prime is 242123051507. The reversal of 242123051501 is 105150321242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175811651401 + 66311400100 = 419299^2 + 257510^2 .

It is a cyclic number.

It is not a de Polignac number, because 242123051501 - 2¹⁴ = 242123035117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242123051507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248056870 + ... + 1248057063.

It is an arithmetic number, because the mean of its divisors is an integer number (61154791383).

Almost surely, 2^242123051501 is an apocalyptic number.

It is an amenable number.

242123051501 is a deficient number, since it is larger than the sum of its proper divisors (2496114031).

242123051501 is an equidigital number, since it uses as much as digits as its factorization.

242123051501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496114030.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 242123051501 its reverse (105150321242), we get a palindrome (347273372743).

The spelling of 242123051501 in words is "two hundred forty-two billion, one hundred twenty-three million, fifty-one thousand, five hundred one".