12042440431131 has 16 divisors (see below), whose sum is σ = 17607985256448. Its totient is φ = 7260236968800.

The previous prime is 12042440431127. The next prime is 12042440431141. The reversal of 12042440431131 is 13113404424021.

It is a happy number.

It is not a de Polignac number, because 12042440431131 - 2² = 12042440431127 is a prime.

It is a super-2 number, since 2×12042440431131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12042440431141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955288036 + ... + 955300641.

It is an arithmetic number, because the mean of its divisors is an integer number (1100499078528).

Almost surely, 2^{12042440431131} is an apocalyptic number.

12042440431131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12042440431131 is a deficient number, since it is larger than the sum of its proper divisors (5565544825317).

12042440431131 is a wasteful number, since it uses less digits than its factorization.

12042440431131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910588882.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12042440431131 its reverse (13113404424021), we get a palindrome (25155844855152).

The spelling of 12042440431131 in words is "twelve trillion, forty-two billion, four hundred forty million, four hundred thirty-one thousand, one hundred thirty-one".