1231113021300 has 216 divisors, whose sum is σ = 4135462146816. Its totient is φ = 305535732480.

The previous prime is 1231113021293. The next prime is 1231113021311. The reversal of 1231113021300 is 31203111321.

1231113021300 is a `hidden beast` number, since 1 + 2 + 311 + 1 + 30 + 21 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 37804 + ... + 1569603.

Almost surely, 2^{1231113021300} is an apocalyptic number.

1231113021300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231113021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067731073408).

1231113021300 is an abundant number, since it is smaller than the sum of its proper divisors (2904349125516).

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

1231113021300 is a wasteful number, since it uses less digits than its factorization.

1231113021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607487 (or 1607477 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1231113021300 its reverse (31203111321), we get a palindrome (1262316132621).

The spelling of 1231113021300 in words is "one trillion, two hundred thirty-one billion, one hundred thirteen million, twenty-one thousand, three hundred".