12906239001 has 4 divisors (see below), whose sum is σ = 17208318672. Its totient is φ = 8604159332.

The previous prime is 12906238991. The next prime is 12906239009. The reversal of 12906239001 is 10093260921.

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 12906239001 - 2¹³ = 12906230809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12906239009) 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, 2151039831 + ... + 2151039836.

It is an arithmetic number, because the mean of its divisors is an integer number (4302079668).

Almost surely, 2^12906239001 is an apocalyptic number.

It is an amenable number.

12906239001 is a deficient number, since it is larger than the sum of its proper divisors (4302079671).

12906239001 is an equidigital number, since it uses as much as digits as its factorization.

12906239001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302079670.

The product of its (nonzero) digits is 5832, while the sum is 33.

Adding to 12906239001 its reverse (10093260921), we get a palindrome (22999499922).

The spelling of 12906239001 in words is "twelve billion, nine hundred six million, two hundred thirty-nine thousand, one".