1231040416423 has 8 divisors (see below), whose sum is σ = 1234438228368. Its totient is φ = 1227647270784.

The previous prime is 1231040416387. The next prime is 1231040416429. The reversal of 1231040416423 is 3246140401321.

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 1231040416423 - 2¹⁷ = 1231040285351 is a prime.

It is a super-2 number, since 2×1231040416423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231040416429) 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 7 ways as a sum of consecutive naturals, for example, 637890 + ... + 1693807.

It is an arithmetic number, because the mean of its divisors is an integer number (154304778546).

Almost surely, 2^{1231040416423} is an apocalyptic number.

1231040416423 is a deficient number, since it is larger than the sum of its proper divisors (3397811945).

1231040416423 is an equidigital number, since it uses as much as digits as its factorization.

1231040416423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333153.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 1231040416423 its reverse (3246140401321), we get a palindrome (4477180817744).

The spelling of 1231040416423 in words is "one trillion, two hundred thirty-one billion, forty million, four hundred sixteen thousand, four hundred twenty-three".