12401315101531 has 8 divisors (see below), whose sum is σ = 12405461720400. Its totient is φ = 12397168742400.

The previous prime is 12401315101519. The next prime is 12401315101603. The reversal of 12401315101531 is 13510151310421.

It is a happy number.

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 12401315101531 - 2⁷ = 12401315101403 is a prime.

It is a super-2 number, since 2×12401315101531² (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 12401315101531.

It is not an unprimeable number, because it can be changed into a prime (12401315101501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155094760 + ... + 155174698.

It is an arithmetic number, because the mean of its divisors is an integer number (1550682715050).

Almost surely, 2^{12401315101531} is an apocalyptic number.

12401315101531 is a deficient number, since it is larger than the sum of its proper divisors (4146618869).

12401315101531 is an equidigital number, since it uses as much as digits as its factorization.

12401315101531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129869.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 12401315101531 its reverse (13510151310421), we get a palindrome (25911466411952).

The spelling of 12401315101531 in words is "twelve trillion, four hundred one billion, three hundred fifteen million, one hundred one thousand, five hundred thirty-one".