111040401 has 4 divisors (see below), whose sum is σ = 148053872. Its totient is φ = 74026932.

The previous prime is 111040399. The next prime is 111040403. The reversal of 111040401 is 104040111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (111040399) and next prime (111040403).

It is not a de Polignac number, because 111040401 - 2¹ = 111040399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111040403) 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, 18506731 + ... + 18506736.

It is an arithmetic number, because the mean of its divisors is an integer number (37013468).

Almost surely, 2^111040401 is an apocalyptic number.

It is an amenable number.

111040401 is a deficient number, since it is larger than the sum of its proper divisors (37013471).

111040401 is an equidigital number, since it uses as much as digits as its factorization.

111040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37013470.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111040401 is about 10537.5709250282. The cubic root of 111040401 is about 480.6478535007.

Adding to 111040401 its reverse (104040111), we get a palindrome (215080512).

It can be divided in two parts, 11 and 1040401, that multiplied together give a palindrome (11444411).

The spelling of 111040401 in words is "one hundred eleven million, forty thousand, four hundred one".