1242440403141 has 16 divisors (see below), whose sum is σ = 1899291227264. Its totient is φ = 707697679104.

The previous prime is 1242440403133. The next prime is 1242440403157. The reversal of 1242440403141 is 1413040442421.

It is a happy number.

It is not a de Polignac number, because 1242440403141 - 2³ = 1242440403133 is a prime.

It is a super-3 number, since 3×1242440403141³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242440403099 and 1242440403108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242440403161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94504336 + ... + 94517481.

It is an arithmetic number, because the mean of its divisors is an integer number (118705701704).

Almost surely, 2^{1242440403141} is an apocalyptic number.

It is an amenable number.

1242440403141 is a deficient number, since it is larger than the sum of its proper divisors (656850824123).

1242440403141 is a wasteful number, since it uses less digits than its factorization.

1242440403141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189022140.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1242440403141 its reverse (1413040442421), we get a palindrome (2655480845562).

The spelling of 1242440403141 in words is "one trillion, two hundred forty-two billion, four hundred forty million, four hundred three thousand, one hundred forty-one".