1231313003112 has 16 divisors (see below), whose sum is σ = 3078282507840. Its totient is φ = 410437667696.

The previous prime is 1231313003111. The next prime is 1231313003143. The reversal of 1231313003112 is 2113003131321.

It is a happy number.

It is a super-2 number, since 2×1231313003112² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231313003111) 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 3 ways as a sum of consecutive naturals, for example, 25652354208 + ... + 25652354255.

It is an arithmetic number, because the mean of its divisors is an integer number (192392656740).

Almost surely, 2^{1231313003112} is an apocalyptic number.

1231313003112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231313003112 is an abundant number, since it is smaller than the sum of its proper divisors (1846969504728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231313003112 is a wasteful number, since it uses less digits than its factorization.

1231313003112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51304708472 (or 51304708468 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1231313003112 its reverse (2113003131321), we get a palindrome (3344316134433).

The spelling of 1231313003112 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, three thousand, one hundred twelve".