143601161111 has 4 divisors (see below), whose sum is σ = 143908658712. Its totient is φ = 143293663512.

The previous prime is 143601161083. The next prime is 143601161113. The reversal of 143601161111 is 111161106341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111161106341 = 277 ⋅401303633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143601161111 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 (143601161113) 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, 153748100 + ... + 153749033.

It is an arithmetic number, because the mean of its divisors is an integer number (35977164678).

Almost surely, 2^143601161111 is an apocalyptic number.

143601161111 is a deficient number, since it is larger than the sum of its proper divisors (307497601).

143601161111 is an equidigital number, since it uses as much as digits as its factorization.

143601161111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307497600.

The product of its (nonzero) digits is 432, while the sum is 26.

Adding to 143601161111 its reverse (111161106341), we get a palindrome (254762267452).

The spelling of 143601161111 in words is "one hundred forty-three billion, six hundred one million, one hundred sixty-one thousand, one hundred eleven".