111152423 has 4 divisors (see below), whose sum is σ = 112172280. Its totient is φ = 110132568.

The previous prime is 111152407. The next prime is 111152441. The reversal of 111152423 is 324251111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324251111 = 419 ⋅773869.

It is a cyclic number.

It is not a de Polignac number, because 111152423 - 2⁴ = 111152407 is a prime.

It is a super-2 number, since 2×111152423² = 24709722277541858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111152395 and 111152404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111152623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509765 + ... + 509982.

It is an arithmetic number, because the mean of its divisors is an integer number (28043070).

Almost surely, 2^111152423 is an apocalyptic number.

111152423 is a deficient number, since it is larger than the sum of its proper divisors (1019857).

111152423 is a wasteful number, since it uses less digits than its factorization.

111152423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019856.

The product of its digits is 240, while the sum is 20.

The square root of 111152423 is about 10542.8849467307. The cubic root of 111152423 is about 480.8094314403.

The spelling of 111152423 in words is "one hundred eleven million, one hundred fifty-two thousand, four hundred twenty-three".