12131026 has 4 divisors (see below), whose sum is σ = 18196542. Its totient is φ = 6065512.

The previous prime is 12131017. The next prime is 12131027. The reversal of 12131026 is 62013121.

12131026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62013121 = 977 ⋅63473.

It can be written as a sum of positive squares in only one way, i.e., 10556001 + 1575025 = 3249^2 + 1255^2 .

It is not an unprimeable number, because it can be changed into a prime (12131027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032755 + ... + 3032758.

Almost surely, 2^12131026 is an apocalyptic number.

12131026 is a deficient number, since it is larger than the sum of its proper divisors (6065516).

12131026 is an equidigital number, since it uses as much as digits as its factorization.

12131026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065515.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12131026 is about 3482.9622449863. The cubic root of 12131026 is about 229.7730969568.

Adding to 12131026 its reverse (62013121), we get a palindrome (74144147).

The spelling of 12131026 in words is "twelve million, one hundred thirty-one thousand, twenty-six".