1231313099999 has 8 divisors (see below), whose sum is σ = 1244299892592. Its totient is φ = 1218393771840.

The previous prime is 1231313099983. The next prime is 1231313100013. The reversal of 1231313099999 is 9999903131321.

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 1231313099999 - 2⁴ = 1231313099983 is a prime.

It is a super-2 number, since 2×1231313099999² (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 (1231313099299) 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, 16829414 + ... + 16902419.

It is an arithmetic number, because the mean of its divisors is an integer number (155537486574).

Almost surely, 2^{1231313099999} is an apocalyptic number.

1231313099999 is a deficient number, since it is larger than the sum of its proper divisors (12986792593).

1231313099999 is a wasteful number, since it uses less digits than its factorization.

1231313099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33732217.

The product of its (nonzero) digits is 3188646, while the sum is 59.

The spelling of 1231313099999 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, ninety-nine thousand, nine hundred ninety-nine".