12002131535 has 8 divisors (see below), whose sum is σ = 14477965056. Its totient is φ = 9551433760.

The previous prime is 12002131501. The next prime is 12002131541. The reversal of 12002131535 is 53513120021.

It is a happy number.

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

It is not a de Polignac number, because 12002131535 - 2⁸ = 12002131279 is a prime.

It is a super-2 number, since 2×12002131535² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12002131535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6282884 + ... + 6284793.

It is an arithmetic number, because the mean of its divisors is an integer number (1809745632).

Almost surely, 2^12002131535 is an apocalyptic number.

12002131535 is a deficient number, since it is larger than the sum of its proper divisors (2475833521).

12002131535 is a wasteful number, since it uses less digits than its factorization.

12002131535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12567873.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12002131535 its reverse (53513120021), we get a palindrome (65515251556).

The spelling of 12002131535 in words is "twelve billion, two million, one hundred thirty-one thousand, five hundred thirty-five".