1113111423 has 16 divisors (see below), whose sum is σ = 1668925440. Its totient is φ = 733132152.

The previous prime is 1113111407. The next prime is 1113111463. The reversal of 1113111423 is 3241113111.

It is a happy number.

It is not a de Polignac number, because 1113111423 - 2⁴ = 1113111407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113111396 and 1113111405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113111463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246111 + ... + 250592.

It is an arithmetic number, because the mean of its divisors is an integer number (104307840).

Almost surely, 2^1113111423 is an apocalyptic number.

1113111423 is a deficient number, since it is larger than the sum of its proper divisors (555814017).

1113111423 is an equidigital number, since it uses as much as digits as its factorization.

1113111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496795 (or 496789 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1113111423 is about 33363.3245195979. The cubic root of 1113111423 is about 1036.3653394520.

Adding to 1113111423 its reverse (3241113111), we get a palindrome (4354224534).

The spelling of 1113111423 in words is "one billion, one hundred thirteen million, one hundred eleven thousand, four hundred twenty-three".