1231313330000 has 100 divisors (see below), whose sum is σ = 3210450942468. Its totient is φ = 454638720000.

The previous prime is 1231313329969. The next prime is 1231313330033. The reversal of 1231313330000 is 333131321.

It can be written as a sum of positive squares in 10 ways, for example, as 1202979014416 + 28334315584 = 1096804^2 + 168328^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-3 number, since 3×1231313330000³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4605821 + ... + 4865820.

Almost surely, 2^{1231313330000} is an apocalyptic number.

1231313330000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231313330000 is an abundant number, since it is smaller than the sum of its proper divisors (1979137612468).

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

1231313330000 is an equidigital number, since it uses as much as digits as its factorization.

1231313330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471682 (or 9471661 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1231313330000 its reverse (333131321), we get a palindrome (1231646461321).

The spelling of 1231313330000 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, three hundred thirty thousand".