104111431 has 4 divisors (see below), whose sum is σ = 109591000. Its totient is φ = 98631864.

The previous prime is 104111419. The next prime is 104111461. The reversal of 104111431 is 134111401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134111401 = 2459 ⋅54539.

It is a cyclic number.

It is not a de Polignac number, because 104111431 - 2²¹ = 102014279 is a prime.

It is a super-2 number, since 2×104111431² = 21678380129735522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104111401) 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, 2739756 + ... + 2739793.

It is an arithmetic number, because the mean of its divisors is an integer number (27397750).

Almost surely, 2^104111431 is an apocalyptic number.

104111431 is a deficient number, since it is larger than the sum of its proper divisors (5479569).

104111431 is an equidigital number, since it uses as much as digits as its factorization.

104111431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479568.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 104111431 is about 10203.5009188023. The cubic root of 104111431 is about 470.4348337324.

Adding to 104111431 its reverse (134111401), we get a palindrome (238222832).

The spelling of 104111431 in words is "one hundred four million, one hundred eleven thousand, four hundred thirty-one".