401101111 has 8 divisors (see below), whose sum is σ = 429075360. Its totient is φ = 373613568.

The previous prime is 401101097. The next prime is 401101121. The reversal of 401101111 is 111101104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401101111 - 2¹³ = 401092919 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 (401101121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119971 + ... + 123268.

It is an arithmetic number, because the mean of its divisors is an integer number (53634420).

Almost surely, 2^401101111 is an apocalyptic number.

401101111 is a deficient number, since it is larger than the sum of its proper divisors (27974249).

401101111 is a wasteful number, since it uses less digits than its factorization.

401101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243353.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 401101111 is about 20027.5088565703. The cubic root of 401101111 is about 737.4817682365.

Adding to 401101111 its reverse (111101104), we get a palindrome (512202215).

The spelling of 401101111 in words is "four hundred one million, one hundred one thousand, one hundred eleven".