12131431285501 has 8 divisors (see below), whose sum is σ = 13362776915904. Its totient is φ = 10921500361920.

The previous prime is 12131431285487. The next prime is 12131431285507. The reversal of 12131431285501 is 10558213413121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12131431285501 - 2²⁹ = 12130894414589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131431285507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5353675516 + ... + 5353677781.

It is an arithmetic number, because the mean of its divisors is an integer number (1670347114488).

Almost surely, 2^{12131431285501} is an apocalyptic number.

12131431285501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12131431285501 is a deficient number, since it is larger than the sum of its proper divisors (1231345630403).

12131431285501 is a wasteful number, since it uses less digits than its factorization.

12131431285501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707353411.

The product of its (nonzero) digits is 28800, while the sum is 37.

Adding to 12131431285501 its reverse (10558213413121), we get a palindrome (22689644698622).

The spelling of 12131431285501 in words is "twelve trillion, one hundred thirty-one billion, four hundred thirty-one million, two hundred eighty-five thousand, five hundred one".