12031452535 has 4 divisors (see below), whose sum is σ = 14437743048. Its totient is φ = 9625162024.

The previous prime is 12031452523. The next prime is 12031452539. The reversal of 12031452535 is 53525413021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031452535 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031452497 and 12031452506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031452539) 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, 1203145249 + ... + 1203145258.

It is an arithmetic number, because the mean of its divisors is an integer number (3609435762).

Almost surely, 2^12031452535 is an apocalyptic number.

12031452535 is a deficient number, since it is larger than the sum of its proper divisors (2406290513).

12031452535 is an equidigital number, since it uses as much as digits as its factorization.

12031452535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406290512.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 12031452535 its reverse (53525413021), we get a palindrome (65556865556).

The spelling of 12031452535 in words is "twelve billion, thirty-one million, four hundred fifty-two thousand, five hundred thirty-five".