242011156541 has 16 divisors (see below), whose sum is σ = 303726409728. Its totient is φ = 187331238000.

The previous prime is 242011156493. The next prime is 242011156591. The reversal of 242011156541 is 145651110242.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242011156541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242011156498 and 242011156507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242011156591) 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, 10395665 + ... + 10418918.

It is an arithmetic number, because the mean of its divisors is an integer number (18982900608).

Almost surely, 2^242011156541 is an apocalyptic number.

It is an amenable number.

242011156541 is a deficient number, since it is larger than the sum of its proper divisors (61715253187).

242011156541 is a wasteful number, since it uses less digits than its factorization.

242011156541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814752.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 242011156541 its reverse (145651110242), we get a palindrome (387662266783).

The spelling of 242011156541 in words is "two hundred forty-two billion, eleven million, one hundred fifty-six thousand, five hundred forty-one".