10042120303121 has 4 divisors (see below), whose sum is σ = 10042135151412. Its totient is φ = 10042105454832.

The previous prime is 10042120303109. The next prime is 10042120303133. The reversal of 10042120303121 is 12130302124001.

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

It is an interprime number because it is at equal distance from previous prime (10042120303109) and next prime (10042120303133).

It can be written as a sum of positive squares in 2 ways, for example, as 1782612171025 + 8259508132096 = 1335145^2 + 2873936^2 .

It is a cyclic number.

It is not a de Polignac number, because 10042120303121 - 2⁴² = 5644073792017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10042120303093 and 10042120303102.

It is not an unprimeable number, because it can be changed into a prime (10042120303321) 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, 6358706 + ... + 7779291.

It is an arithmetic number, because the mean of its divisors is an integer number (2510533787853).

Almost surely, 2^{10042120303121} is an apocalyptic number.

It is an amenable number.

10042120303121 is a deficient number, since it is larger than the sum of its proper divisors (14848291).

10042120303121 is an equidigital number, since it uses as much as digits as its factorization.

10042120303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14848290.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10042120303121 its reverse (12130302124001), we get a palindrome (22172422427122).

The spelling of 10042120303121 in words is "ten trillion, forty-two billion, one hundred twenty million, three hundred three thousand, one hundred twenty-one".