12021123 has 8 divisors (see below), whose sum is σ = 16401088. Its totient is φ = 7827624.

The previous prime is 12021071. The next prime is 12021131. The reversal of 12021123 is 32112021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12021123 - 2⁶ = 12021059 is a prime.

It is a super-2 number, since 2×12021123² = 289014796362258, 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 = 12021099 and 12021108.

It is not an unprimeable number, because it can be changed into a prime (12021923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46465 + ... + 46722.

It is an arithmetic number, because the mean of its divisors is an integer number (2050136).

Almost surely, 2^12021123 is an apocalyptic number.

12021123 is a deficient number, since it is larger than the sum of its proper divisors (4379965).

12021123 is an equidigital number, since it uses as much as digits as its factorization.

12021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93233.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12021123 is about 3467.1491170701. The cubic root of 12021123 is about 229.0771019846.

Adding to 12021123 its reverse (32112021), we get a palindrome (44133144).

The spelling of 12021123 in words is "twelve million, twenty-one thousand, one hundred twenty-three".