12153531043 has 4 divisors (see below), whose sum is σ = 12193119400. Its totient is φ = 12113942688.

The previous prime is 12153531029. The next prime is 12153531053. The reversal of 12153531043 is 34013535121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12153531043 - 2²¹ = 12151433891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12153531053) 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, 19793718 + ... + 19794331.

It is an arithmetic number, because the mean of its divisors is an integer number (3048279850).

Almost surely, 2^12153531043 is an apocalyptic number.

12153531043 is a deficient number, since it is larger than the sum of its proper divisors (39588357).

12153531043 is an equidigital number, since it uses as much as digits as its factorization.

12153531043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39588356.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 12153531043 in words is "twelve billion, one hundred fifty-three million, five hundred thirty-one thousand, forty-three".