141920111 has 4 divisors (see below), whose sum is σ = 142249824. Its totient is φ = 141590400.

The previous prime is 141920083. The next prime is 141920153. The reversal of 141920111 is 111029141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111029141 = 19 ⋅5843639.

It is a cyclic number.

It is not a de Polignac number, because 141920111 - 2⁶ = 141920047 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 (141920161) 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, 164210 + ... + 165071.

It is an arithmetic number, because the mean of its divisors is an integer number (35562456).

Almost surely, 2^141920111 is an apocalyptic number.

141920111 is a deficient number, since it is larger than the sum of its proper divisors (329713).

141920111 is an equidigital number, since it uses as much as digits as its factorization.

141920111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329712.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 141920111 is about 11913.0227482365. The cubic root of 141920111 is about 521.6124884390.

Adding to 141920111 its reverse (111029141), we get a palindrome (252949252).

The spelling of 141920111 in words is "one hundred forty-one million, nine hundred twenty thousand, one hundred eleven".