12002542106 has 8 divisors (see below), whose sum is σ = 18013132884. Its totient is φ = 5998164480.

The previous prime is 12002542093. The next prime is 12002542109. The reversal of 12002542106 is 60124520021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11254027225 + 748514881 = 106085^2 + 27359^2 .

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

It is a super-2 number, since 2×12002542106² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12002542109) 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, 1548455 + ... + 1556186.

Almost surely, 2^12002542106 is an apocalyptic number.

12002542106 is a deficient number, since it is larger than the sum of its proper divisors (6010590778).

12002542106 is a wasteful number, since it uses less digits than its factorization.

12002542106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106576.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 12002542106 in words is "twelve billion, two million, five hundred forty-two thousand, one hundred six".