111473421 has 4 divisors (see below), whose sum is σ = 148631232. Its totient is φ = 74315612.

The previous prime is 111473393. The next prime is 111473423. The reversal of 111473421 is 124374111.

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 a cyclic number.

It is not a de Polignac number, because 111473421 - 2⁶ = 111473357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111473391 and 111473400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111473423) 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, 18578901 + ... + 18578906.

It is an arithmetic number, because the mean of its divisors is an integer number (37157808).

Almost surely, 2^111473421 is an apocalyptic number.

It is an amenable number.

111473421 is a deficient number, since it is larger than the sum of its proper divisors (37157811).

111473421 is an equidigital number, since it uses as much as digits as its factorization.

111473421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37157810.

The product of its digits is 672, while the sum is 24.

The square root of 111473421 is about 10558.0974138336. The cubic root of 111473421 is about 481.2718311117.

The spelling of 111473421 in words is "one hundred eleven million, four hundred seventy-three thousand, four hundred twenty-one".