12040322420531 has 16 divisors (see below), whose sum is σ = 12405836232000. Its totient is φ = 11679942962688.

The previous prime is 12040322420509. The next prime is 12040322420563. The reversal of 12040322420531 is 13502422304021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12040322420531 is a prime.

It is a super-2 number, since 2×12040322420531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12040322420494 and 12040322420503.

It is not an unprimeable number, because it can be changed into a prime (12040322420591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195248255 + ... + 195309911.

It is an arithmetic number, because the mean of its divisors is an integer number (775364764500).

Almost surely, 2^{12040322420531} is an apocalyptic number.

12040322420531 is a deficient number, since it is larger than the sum of its proper divisors (365513811469).

12040322420531 is an equidigital number, since it uses as much as digits as its factorization.

12040322420531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103198.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 12040322420531 its reverse (13502422304021), we get a palindrome (25542744724552).

The spelling of 12040322420531 in words is "twelve trillion, forty billion, three hundred twenty-two million, four hundred twenty thousand, five hundred thirty-one".