12119531 has 4 divisors (see below), whose sum is σ = 12155832. Its totient is φ = 12083232.

The previous prime is 12119519. The next prime is 12119557. The reversal of 12119531 is 13591121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12119531 - 2²² = 7925227 is a prime.

It is a super-2 number, since 2×12119531² = 293766063319922, 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 = 12119497 and 12119506.

It is not an unprimeable number, because it can be changed into a prime (12119501) 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, 17645 + ... + 18318.

It is an arithmetic number, because the mean of its divisors is an integer number (3038958).

Almost surely, 2^12119531 is an apocalyptic number.

12119531 is a deficient number, since it is larger than the sum of its proper divisors (36301).

12119531 is an equidigital number, since it uses as much as digits as its factorization.

12119531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36300.

The product of its digits is 270, while the sum is 23.

The square root of 12119531 is about 3481.3116780892. The cubic root of 12119531 is about 229.7004986334.

The spelling of 12119531 in words is "twelve million, one hundred nineteen thousand, five hundred thirty-one".