1231323013300 has 36 divisors (see below), whose sum is σ = 2673917319276. Its totient is φ = 492170425600.

The previous prime is 1231323013289. The next prime is 1231323013367. The reversal of 1231323013300 is 33103231321.

It can be written as a sum of positive squares in 6 ways, for example, as 102709994256 + 1128613019044 = 320484^2 + 1062362^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4346761 + ... + 4621360.

It is an arithmetic number, because the mean of its divisors is an integer number (74275481091).

Almost surely, 2^{1231323013300} is an apocalyptic number.

1231323013300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231323013300 is an abundant number, since it is smaller than the sum of its proper divisors (1442594305976).

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

1231323013300 is a wasteful number, since it uses less digits than its factorization.

1231323013300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969508 (or 8969501 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1231323013300 its reverse (33103231321), we get a palindrome (1264426244621).

The spelling of 1231323013300 in words is "one trillion, two hundred thirty-one billion, three hundred twenty-three million, thirteen thousand, three hundred".