12013532210431 has 4 divisors (see below), whose sum is σ = 12013556746864. Its totient is φ = 12013507674000.

The previous prime is 12013532210377. The next prime is 12013532210437. The reversal of 12013532210431 is 13401223531021.

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 12013532210431 - 2¹³ = 12013532202239 is a prime.

It is a super-2 number, since 2×12013532210431² (a number of 27 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 12013532210431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013532210437) 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, 11518515 + ... + 12518116.

It is an arithmetic number, because the mean of its divisors is an integer number (3003389186716).

Almost surely, 2^{12013532210431} is an apocalyptic number.

12013532210431 is a deficient number, since it is larger than the sum of its proper divisors (24536433).

12013532210431 is an equidigital number, since it uses as much as digits as its factorization.

12013532210431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24536432.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 12013532210431 its reverse (13401223531021), we get a palindrome (25414755741452).

The spelling of 12013532210431 in words is "twelve trillion, thirteen billion, five hundred thirty-two million, two hundred ten thousand, four hundred thirty-one".