1242103125141 has 6 divisors (see below), whose sum is σ = 1794148958550. Its totient is φ = 828068750088.

The previous prime is 1242103125083. The next prime is 1242103125143. The reversal of 1242103125141 is 1415213012421.

1242103125141 is a `hidden beast` number, since 1 + 2 + 42 + 103 + 1 + 2 + 514 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1239804306225 + 2298818916 = 1113465^2 + 47946^2 .

It is not a de Polignac number, because 1242103125141 - 2⁷ = 1242103125013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242103125143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69005729166 + ... + 69005729183.

It is an arithmetic number, because the mean of its divisors is an integer number (299024826425).

Almost surely, 2^{1242103125141} is an apocalyptic number.

It is an amenable number.

1242103125141 is a deficient number, since it is larger than the sum of its proper divisors (552045833409).

1242103125141 is a wasteful number, since it uses less digits than its factorization.

1242103125141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138011458355 (or 138011458352 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 1242103125141 its reverse (1415213012421), we get a palindrome (2657316137562).

The spelling of 1242103125141 in words is "one trillion, two hundred forty-two billion, one hundred three million, one hundred twenty-five thousand, one hundred forty-one".